на сайте http://mymedia.md прописал в панель администрирования Plesk страницу по умолчанию Default.aspx, но появляется ошибка, проблема в корневом файле сайта web.config как сообщает тех поддержка, этот сайт был на другом хостинге, думал что проблема в хостинге, но здесь повторяется ошибка, ошибки отличаются когда открываю http://mymedia.md и http://mymedia.md/Default.aspx, все остальные страницы сайта работают нормально, пример http://mymedia.md/Catalog.aspx, от чего можно появляться такие ошибки и как решить ее, спасибо

ответ тех поддержке:
The problem is in your web.config. I re-created the domain and until I placed your files the site was opening the default.aspx file. However after web.config is placed it switches the default index settings. I have renamed it to web.config1 so you can see that it's trying to load default.aspx . When you rename it it will switch the default settings.

содержимое файла web.config:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <configSections>
        <!--
        The configSections define a section for ASP.NET Atlas
    -->
      <section name="Membership" type="AX.Kernel.Providers.ConfigurationSections.Membership.MembershipSection, AX.Kernel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=ecc967527d7f7d9f" restartOnExternalChanges="false" />
    <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
          <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
              <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
                  <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
                  <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
                      <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" />
                      <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
                      <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
                      <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
                  </sectionGroup>
              </sectionGroup>
        </sectionGroup>
    <section name="winFxHttpCompressionModule" type="WinFxProgrammer.WinFxHttpCompressionSection, WinFxHttpCompression, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null" />
    </configSections>

  <winFxHttpCompressionModule compress="true" enableTrace="true" compressDefaultHandler="true" compressTraceHandler="true" compressWebResourceHandler="true" preferredAlgorithm="GZip" maximumCompressionLevel="Ten" forceAcceptEncodingHeader="false" compressionFactory="WinFxProgrammer.WinFxStandardCompressionFactory,WinFxHttpCompression">
    <excludedPaths>
      <!-- Example:
              Do not compress these pages.
              <add value="/nocompress.aspx" />
              <add value="/image/dynamic.aspx" />
              
              Do not compress these paths and their subdirectories.
              <add value="/images/" />
              <add value="/files/images/" />

              NOTE:  The path feature assumes that all subdirectories are included.
         -->
      <add value="/images/" />
      <add value="/asp.net/components/sitemapexplorer/page/properties.aspx" />
      <add value="/asp.net/components/sitemapexplorer/control/properties.aspx" />
    </excludedPaths>
    <excludedMimeTypes>
      <!-- The following MIME types are already excluded by the WinFxHttpCompressionModule.
             JPEG Image       image/jpeg
             GIF Image        image/gif
             PNG Image        image/png
             Zip File         application/zip, application/x-zip, application/x-zip-compressed
             GZip File        application/x-gzip, application/x-gzip-compressed
             Compressed File  application/x-compress, application/x-compressed
          -->
      <add value="application/octet-stream" />
      <add value="application/pdf" />
    </excludedMimeTypes>
    <handlers>
      <add type="WinFxProgrammer.WinFxHttpCompressionAtlasSupport, WinFxHttpCompressionAtlasSupport" />
    </handlers>
  </winFxHttpCompressionModule>


  <Membership enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="true" requiresUniqueEmail="false" minRequiredPasswordLength="1" minRequiredNonalphanumericCharacters="0" passwordFormat="Hashed" maxInvalidPasswordAttempts="5" passwordAttemptWindow="5" passwordStrengthRegularExpression="" />
 <system.net>
        <mailSettings>
            <smtp deliveryMethod="Network" from="[email protected]">
                <network defaultCredentials="false" host="mail.webassembler.net" port="25" userName="[email protected]" password="mailbot" />
            </smtp>
        </mailSettings>
    </system.net>
    <connectionStrings>
        <remove name="LocalSqlServer" />
        <add name="LocalSqlServer" connectionString="server=databaseserver;uid=databaseuser;pwd=databasepassword;database=databasename;" />
        <add name="LocalSqlServer1" connectionString="Data Source=iacovlev64;Initial Catalog=mymedia_prod;User ID=sa;Password=sa;" providerName="System.Data.SqlClient" />
    </connectionStrings>
    <system.web>
        <httpRuntime maxRequestLength="7048" />
        <siteMap defaultProvider="XmlSiteMapProviderFactory" enabled="true">
            <providers>
                <add name="XmlSiteMapProviderFactory" type="AX.Kernel.Providers.XmlSiteMapProviderFactory" />
                <add name="MenuXmlSiteMapProviderFactory" type="AX.Kernel.Providers.MenuXmlSiteMapProviderFactory" />
                <add name="StandaloneMenuXmlSiteMapProviderFactory" type="AX.Kernel.Providers.StandaloneMenuXmlSiteMapProviderFactory" />
            </providers>
        </siteMap>
        <membership defaultProvider="SqlMembershipProviderFactory">
            <providers>
                <add connectionStringName="LocalSqlServer" name="SqlMembershipProviderFactory" type="AX.Kernel.Providers.SqlMembershipProviderFactory" />
            </providers>
        </membership>
        <anonymousIdentification enabled="false" cookieName=".ASPXANONYMOUS" cookieTimeout="30" cookiePath="/" cookieRequireSSL="false" cookieSlidingExpiration="true" cookieProtection="None" />
        <roleManager enabled="true" defaultProvider="SqlRoleProviderFactory">
            <providers>
                <add connectionStringName="LocalSqlServer" name="SqlRoleProviderFactory" type="AX.Kernel.Providers.SqlRoleProviderFactory" />
            </providers>
        </roleManager>
        <webParts>
            <personalization defaultProvider="SqlPersonalizationProviderFactory">
                <providers>
                    <add connectionStringName="LocalSqlServer" name="SqlPersonalizationProviderFactory" type="AX.Kernel.Providers.SqlPersonalizationProviderFactory" />
                </providers>
                <authorization>
                    <allow roles="Administrators" verbs="enterSharedScope" />
                </authorization>
            </personalization>
        </webParts>
        <authentication mode="Forms">
            <forms loginUrl="4dealers.aspx" />
        </authentication>
        <profile enabled="true" defaultProvider="SqlProfileProviderFactory" automaticSaveEnabled="true">
            <providers>
                <clear />
                <add name="SqlProfileProviderFactory" connectionStringName="LocalSqlServer" type="AX.Kernel.Providers.SqlProfileProviderFactory" />
            </providers>
            <properties>
                <add name="Theme" type="System.String" allowAnonymous="false" />
                <add name="CMS_CurrentFolderID" type="System.Int32" allowAnonymous="false" />
            </properties>
        </profile>
        <!--
        The <customErrors> section enables configuration
        of what to do if/when an unhandled error occurs
        during the execution of a request. Specifically,
        it enables developers to configure html error pages
        to be displayed in place of a error stack trace.
    -->
        <customErrors mode="Off">
            <error statusCode="404" redirect="login.aspx" />
        </customErrors>
        <trace enabled="true" localOnly="false" />
        <pages validateRequest="false" enableEventValidation="false">
            <controls>
                <add tagPrefix="atlas" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
                <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
                <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
            </controls>
        </pages>
        <healthMonitoring enabled="true" heartbeatInterval="0">
            <providers>
                <add name="PortalSqlWebEventProvider" type="AX.Kernel.Providers.SqlWebEventProviderFactory" connectionStringName="LocalSqlServer" buffer="false" bufferMode="Notification" maxEventDetailsLength="1073741823" />
                <add name="CriticalMailEventProvider" type="System.Web.Management.SimpleMailWebEventProvider" from="[email protected]" to="[email protected]" bodyHeader="Warning!" bodyFooter="Please investigate ASAP." subjectPrefix="Action required." buffer="false" bufferMode="Critical Notification" maxMessagesPerNotification="1" />
                <add name="TemplatedMailEventProvider" type="System.Web.Management.TemplatedMailWebEventProvider" template="ASP.Net/Resources/AX.TemplatedMailWebEventProviderPages/Default.aspx" from="[email protected]" to="[email protected]" buffer="false" bufferMode="Critical Notification" maxMessagesPerNotification="1" />
                <add name="CriticalMailEventProvider_FileNotFound" type="System.Web.Management.SimpleMailWebEventProvider" from="[email protected]" to="[email protected]" bodyHeader="Warning!" bodyFooter="Please investigate ASAP." subjectPrefix="Action required." buffer="false" bufferMode="Critical Notification" maxMessagesPerNotification="1" />
            </providers>
            <rules>
                <clear />
                <add name="All Errors" eventName="All Errors" provider="PortalSqlWebEventProvider" profile="Default" minInstances="1" maxLimit="Infinite" minInterval="00:01:00" custom="" />
                <add name="All Audits" eventName="All Audits" provider="PortalSqlWebEventProvider" profile="Default" minInstances="1" maxLimit="Infinite" minInterval="00:01:00" custom="" />
                <add name="All Events" eventName="All Events" provider="PortalSqlWebEventProvider" profile="Default" minInstances="1" maxLimit="Infinite" minInterval="00:01:00" custom="" />
                <add name="Failure Audits" eventName="Failure Audits" provider="PortalSqlWebEventProvider" profile="Default" minInstances="1" maxLimit="Infinite" minInterval="00:01:00" custom="" />
                <add name="Success Audits" eventName="Success Audits" provider="PortalSqlWebEventProvider" profile="Default" minInstances="1" maxLimit="Infinite" minInterval="01:00:00" custom="" />
                <add name="Heartbeats" eventName="Heartbeats" provider="PortalSqlWebEventProvider" profile="Default" minInstances="1" maxLimit="Infinite" minInterval="00:01:00" custom="" />
                <add name="Application Lifetime Events" eventName="Application Lifetime Events" provider="PortalSqlWebEventProvider" profile="Default" minInstances="1" maxLimit="Infinite" minInterval="00:01:00" custom="" />
                <add name="Request Processing Events" eventName="Request Processing Events" provider="PortalSqlWebEventProvider" profile="Default" minInstances="1" maxLimit="Infinite" minInterval="00:01:00" custom="" />
                <add name="Infrastructure Errors" eventName="Infrastructure Errors" provider="PortalSqlWebEventProvider" profile="Default" minInstances="1" maxLimit="Infinite" minInterval="00:01:00" custom="" />
                <add name="Request Processing Errors" eventName="Request Processing Errors" provider="PortalSqlWebEventProvider" profile="Default" minInstances="1" maxLimit="Infinite" minInterval="00:01:00" custom="" />
                <add name="Custom Login Event" eventName="Login Event" provider="PortalSqlWebEventProvider" />
                <add name="Change Password Event" eventName="Change Password Event" provider="PortalSqlWebEventProvider" />
                <add name="Mail Login Event" eventName="Mail Event" provider="PortalSqlWebEventProvider" />
                <add name="Authorization Failure" eventName="AuthorizationFailureEvent" provider="PortalSqlWebEventProvider" />
                <add name="File Not Found" eventName="FileNotFoundEvent" provider="PortalSqlWebEventProvider" />
            </rules>
            <eventMappings>
                <add name="Login Event" type="AX.WebEvents.Events.LoginEvent,AX.Kernel" />
                <add name="Change Password Event" type="AX.WebEvents.Events.ChangePasswordEvent,AX.Kernel" />
                <add name="Mail Event" type="AX.WebEvents.Events.MailEvent,AX.Kernel" />
                <add name="AuthorizationFailureEvent" type="AX.WebEvents.WebAuditEvents.AuthorizationFailureEvent,AX.Kernel" />
                <add name="FileNotFoundEvent" type="AX.WebEvents.WebAuditEvents.FileNotFoundEvent,AX.Kernel" />
            </eventMappings>
        </healthMonitoring>
        <!--
          Set compilation debug="true" to insert debugging
          symbols into the compiled page. Because this
          affects performance, set this value to true only
          during development.
    -->
        <compilation debug="true">
            <assemblies>
                <add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
                <add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
                <add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
                <add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
            </assemblies>
        </compilation>
    
        <httpHandlers>
            <remove verb="*" path="*.asmx" />
      <add path="WinFxCompress.axd" type="WinFxProgrammer.WinFxHttpCompressionTraceHandler, WinFxHttpCompression" verb="GET" validate="false" />
            <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
            <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
            <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" />
            <add verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
        </httpHandlers>
        
    <httpModules>
      <add name="HttpCompressionModule" type="WinFxProgrammer.WinFxHttpCompressionModule, WinFxHttpCompression" />
            <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        </httpModules>
        
    <sessionState mode="InProc" stateConnectionString="tcpip=127.0.0.1:42424"></sessionState>
        <globalization uiCulture="auto" culture="auto" />
    </system.web>
    <system.codedom>
        <compilers>
            <compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
                <providerOption name="CompilerVersion" value="v3.5" />
                <providerOption name="WarnAsError" value="false" />
            </compiler>
            <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" warningLevel="4" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
                <providerOption name="CompilerVersion" value="v3.5" />
                <providerOption name="OptionInfer" value="true" />
                <providerOption name="WarnAsError" value="false" />
            </compiler>
        </compilers>
    </system.codedom>
    <system.diagnostics>
        <trace autoflush="true" />
        <sources>
            <source name="System.Net" maxdatasize="1024">
                <listeners>
                    <add name="MyTraceFile" />
                </listeners>
            </source>
            <source name="System.Net.Sockets" maxdatasize="1024">
                <listeners>
                    <add name="MyTraceFile" />
                </listeners>
            </source>
        </sources>
        <!--sharedListeners>
            <add name="MyTraceFile" type="System.Diagnostics.TextWriterTraceListener" initializeData="C:\Inetpub\NewWebAsm\wa\System.Net.trace.log"/>
        </sharedListeners-->
        <switches>
            <add name="System.Net" value="Verbose" />
            <add name="System.Net.Sockets" value="Verbose" />
        </switches>
    </system.diagnostics>
    <appSettings>
        <add key="EnableWebDavLogging" value="false" />
        <add key="EnableCustomControlsLogging" value="false" />
        <add key="VersionNumber" value="3" />
        <add key="SingleWorkspaceOnly" value="www.mymedia.md" />
    </appSettings>
    <system.web.extensions>
    <scripting>
      <webServices>
      <!-- Uncomment this line to customize maxJsonLength and add a custom converter -->
      <jsonSerialization maxJsonLength="500000"></jsonSerialization>
      <!-- Uncomment this line to enable the authentication service. Include requireSSL="true" if appropriate. -->
      <authenticationService enabled="true" requireSSL="false" />
      <!-- Uncomment these lines to enable the profile service. To allow profile properties to be retrieved
           and modified in ASP.NET AJAX applications, you need to add each property name to the readAccessProperties and
           writeAccessProperties attributes. -->
      <!--
      <profileService enabled="true"
                      readAccessProperties="propertyname1,propertyname2"
                      writeAccessProperties="propertyname1,propertyname2" />
      -->
      </webServices>
      <scriptResourceHandler enableCompression="false" enableCaching="true" />
    </scripting>
  </system.web.extensions>
    <!-- 
      The system.webServer section is required for running ASP.NET AJAX under Internet
      Information Services 7.0.  It is not necessary for previous version of IIS.
  -->
    <system.webServer>
        <urlCompression doStaticCompression="false" doDynamicCompression="false" />
        <validation validateIntegratedModeConfiguration="false" />
        <modules>
      <add name="HttpCompressionModule" type="WinFxProgrammer.WinFxHttpCompressionModule, WinFxHttpCompression" />
            <remove name="ScriptModule" />
            <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
            <!--add name="DavModule" type="AX.WebDav.DataBase.DavModule" preCondition=""/-->
        </modules>
        <handlers>
            <remove name="OPTIONSVerbHandler" />
            <remove name="WebServiceHandlerFactory-Integrated" />
            <remove name="ScriptHandlerFactory" />
            <remove name="ScriptHandlerFactoryAppServices" />
            <remove name="ScriptResource" />
      <remove name="StaticFile" />
            <add name="StaticFile" path="*" verb="*" modules="StaticFileModule,DefaultDocumentModule,DirectoryListingModule" resourceType="File" requireAccess="Read" />
      <add path="WinFxCompress.axd" name="WinFxCompress" type="WinFxProgrammer.WinFxHttpCompressionTraceHandler, WinFxHttpCompression" verb="GET" />
      <add name="WebService" path="*.asmx" verb="*" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
            <add name="UploadHandler" path="Receiver.ashx" verb="POST,GET" type="AX.Uploader.Handler" />
            <add name="UploadHandler2" path="Upload.axd" verb="POST,GET" type="AX.DF.OM.Handler.Upload" />
            <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
            <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
            <add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        </handlers>
    </system.webServer>
    <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35" />
                <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" />
            </dependentAssembly>
            <dependentAssembly>
                <assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35" />
                <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" />
            </dependentAssembly>
        </assemblyBinding>
    </runtime>
</configuration>

Какая ошибка появляется? если ERR_CONTENT_DECODING_FAILED, и только в хроме - то это глюки со сжатием, на клиенте или на сервере. отключи dynamic/static content compression, проверь, поможет ли.

появляется ошибка во всех браузерах, что вы имейте виду под "Какая ошибка появляется?" как я могу узнать дополнительно об ошибке на сайте?

посмотрел на сервере компрессия не включена

Cервер присылает http://mymedia.md/Default.aspx с Content-Encoding: gzip. По крайней мере firebug так говорит. Значит сжатие все-таки включено. 
http://mymedia.md/ кидает 404 - значит криво настроен default document.

Добавлено через 2 минуты и 58 секунд
Поставь filddler, посмотри что на самом деле к серверу и от него приходит.

Вот включенное (левое, не стандартное) сжатие:
 <handlers>
      <add type="WinFxProgrammer.WinFxHttpCompressionAtlasSupport, WinFxHttpCompressionAtlasSupport" />
    </handlers>

 <add name="HttpCompressionModule" type="WinFxProgrammer.WinFxHttpCompressionModule, WinFxHttpCompression" />