HTTP Error 500.19 - Internal Server Error

I published my website to our test server which runs on IIS 8 on server 2012.  My website uses url rewriting, so there are additional things on my web.config file.

Here is my error, when I pull up the site.

I was able to get it to appear, however only when I deleted all the assembly's under the<assembly> tag.  I just don't want to do that and leave it because it works, but I just need to know why? and will this cause issues down the road.

Here is my Web.Config File.

<?xml version="1.0" encoding="utf-8"?>
<!-- For more information on how to configure your ASP.NET application, please visit  http://go.microsoft.com/fwlink/?LinkId=169433 -->
<configuration>
  <configSections>
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.4.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" requirePermission="false" />
  
  </configSections>
  
  <connectionStrings>
    <add name="MyConnectionString" connectionString="Data Source=MyDataSource;Initial Catalog=MyCatalog;Persist Security Info=True;User ID=MyUserID;password=MyPassword" providerName="System.Data.SqlClient" />
    
  </connectionStrings>
  <appSettings>
      
     
  </appSettings>
  
  <system.web>
    
    <httpHandlers>
      <add path="Reserved.ReportViewerWebControl.axd" verb="*" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" validate="false" />
    </httpHandlers>
      <httpModules>

          <add name="CryptoQueryStringUrlRemapper" type="SmartSoft.QueryStringEncryption.CryptoQueryStringUrlRemapper"/>
      </httpModules>
    <trace enabled="true" localOnly="false" />
    
    <!--<customErrors defaultRedirect="~/MyErrorPage.aspx" mode="On"/>-->
    
    <compilation debug="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Web.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" />
        <add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" />
        <add assembly="Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" />
        <add assembly="Microsoft.ReportViewer.Common, Version=11.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" />
        <add assembly="Microsoft.Build.Framework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" />
      </assemblies>
      <buildProviders>
        <add extension=".rdlc" type="Microsoft.Reporting.RdlBuildProvider, Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" />
          
      </buildProviders>
    </compilation>
    <authentication mode="Forms">
      <forms loginUrl="/" protection="All" path="/" timeout="200" slidingExpiration="true" requireSSL="false"  />

    </authentication>
    <authorization>
      <deny users="?" />
    </authorization>
    <profile defaultProvider="DefaultProfileProvider">
      <providers>
        <add name="DefaultProfileProvider" type="System.Web.Providers.DefaultProfileProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" connectionStringName="MyConnectionString" applicationName="/" />
      </providers>
    </profile>
    <roleManager enabled="true" cacheRolesInCookie="true">
      <providers>
        <remove name="AspNetSqlRoleProvider" />
        <add connectionStringName="MyConnectionString" applicationName="MyApplicationName" name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" />
        <add applicationName="/" name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" />
      </providers>
    </roleManager>
    <membership defaultProvider="MyDefaultProvider">
      <providers>
        <add connectionStringName="MyConnectionString" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="true" applicationName="MyApplicationName" requiresUniqueEmail="false" passwordFormat="Hashed" maxInvalidPasswordAttempts="500" minRequiredPasswordLength="5" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" passwordStrengthRegularExpression="" name="MySiteName" type="System.Web.Security.SqlMembershipProvider, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" />
       
      </providers>
    </membership>
    <sessionState mode="InProc" customProvider="DefaultSessionProvider" cookieless="false">
      <providers>
        <add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" connectionStringName="MyConnectionString" />
      </providers>
    </sessionState>
    <pages>
      <controls>
        <add tagPrefix="ajaxToolkit" assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" />
      </controls>
    </pages>

      <machineKey validationKey="MyValidation" validation="SHA1" decryption="AES" />

  </system.web>
  
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true" />
    <validation validateIntegratedModeConfiguration="false" />
    <!--<handlers>
      <add name="ReportViewerWebControlHandler" preCondition="integratedMode" verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX" />
    </handlers>-->

      <directoryBrowse enabled="true" />
        <security>
            <requestFiltering>
                <fileExtensions>
                
                </fileExtensions>
            </requestFiltering>
        </security>
      <httpErrors>
          <error statusCode="404" prefixLanguageFilePath="" path="/MyErrorPage.aspx" responseMode="ExecuteURL" />
      </httpErrors>
      <rewrite>
          <rules>
              <rule name="RemoveASPX" enabled="true" stopProcessing="true">
                  <match url="(.*)\.aspx" />
                  <action type="Redirect" url="{R:1}" />
              </rule>
              <rule name="AddASPX" enabled="true">
                  <match url=".*" negate="false" />
                  <conditions>
                      <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
                      <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
                      <add input="{URL}" pattern="(.*)\.(.*)" negate="true" />
                  </conditions>
                  <action type="Rewrite" url="{R:0}.aspx" />
              </rule>


            

          </rules>
      </rewrite>

  </system.webServer>


    <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
  </entityFramework>
  <system.net>
   
  </system.net>
</configuration>

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