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Error after 9.11.0 version upgrade

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New Around Here

    Hi everyone, after updating the version from 9.10.2 to 9.11.0 I get the following error, can anyone help me?
    Thank you.

    Server Error in '/' Application.

    Object reference not set to an instance of an object.

    Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

    Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

    Source Error:


    An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

    Stack Trace:

    [NullReferenceException: Object reference not set to an instance of an object.]
       DotNetNuke.Entities.Portals.PortalInfo.get_HomeDirectoryMapPath() +36
       DotNetNuke.Entities.Portals.PortalSettingsController.LoadPortal(PortalInfo portal, PortalSettings portalSettings) +635
       DotNetNuke.Entities.Portals.PortalSettings.BuildPortalSettings(Int32 tabId, PortalInfo portal) +68
       DotNetNuke.Entities.Portals.PortalSettings..ctor(Int32 tabId, PortalAliasInfo portalAliasInfo) +183
       DotNetNuke.HttpModules.UrlRewrite.BasicUrlRewriter.RewriteUrl(Object sender, EventArgs e) +2083
       System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +141
       System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +48
       System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +71


    Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3701.0

    Veteran Member

      This error is a bit vague.  Did this happen during the upgrade or after?  If it happened as a result of the upgrade, then you'll want to take a look at the upgrade log files to see if anything went wrong.  You'll also want to look at the logs to see if there are any additional errors that might be related and help determine a root cause.  

      The following video can help you determine where and how to gather that information.  


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