อัพขึ้น Server แล้วเกิด Error ตรง Web.config ช่วยดูให้หน่อยนะคะ

<?xml version="1.0"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <appSettings>
    <add key="ChartImageHandler" value="storage=memory;timeout=30;" />

    <add key="Telerik.Skin" value="Office2007"/>
    <add key="Telerik.ScriptManager.TelerikCdn" value="Disabled"/>
    <add key="Telerik.StyleSheetManager.TelerikCdn" value="Disabled"/>

  </appSettings>
  <system.webServer>
    <handlers>
      <remove name="ChartImageHandler" />
      <add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD,POST"
        path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </handlers>
    <validation validateIntegratedModeConfiguration="false" />
  </system.webServer>
  <system.web>

    <identity impersonate="true" userName="administrator" password="pea"/>
    <!--<sessionState timeout="60000"></sessionState>-->
    <httpHandlers>
      <add path="ChartImg.axd" verb="GET,HEAD,POST" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false" />
      <add path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" validate="false"/>
      <add path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" verb="*" validate="false"/>
      <add path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" validate="false"/>
      <add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false"/>

    </httpHandlers>

    <pages>
      <controls>

        <add tagPrefix="telerik" namespace="Telerik.Web.UI" assembly="Telerik.Web.UI"/>
        <add tagPrefix="asp" namespace="System.Web.UI.DataVisualization.Charting" assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      </controls>
    </pages>
    <compilation debug="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
        <add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
        <add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
        <add assembly="System.Speech, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>

      </assemblies>

      <codeSubDirectories>
        <add directoryName="CSCode"/>
        <add directoryName="VBCode"/>
      </codeSubDirectories>
    </compilation>
    <globalization culture="th-TH" uiCulture="th-TH" fileEncoding="windows-874" responseEncoding="windows-874" requestEncoding="windows-874"/>
    <customErrors mode="Off"/>

  </system.web>
  <system.windows.forms jitDebugging="true" />
</configuration>

<?xml version="1.0"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
	<connectionStrings>
  <add name="ConnectionString" connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;User Instance=True"
   providerName="System.Data.SqlClient" />
 </connectionStrings>
    <system.web>
        <httpRuntime maxRequestLength="15360" />
        <compilation debug="true" targetFramework="4.0"/>
  	</system.web>
</configuration>