Hi,

We are using DNN 4.0 for one of our client websites and for last few weeks , we are getting error as mentioned below in event logs and during that time , the CPU usage goes 100% . We end up restarting the app pool and then every thing is back to normal. Its happening atleast twice a day and is really upsetting our client. If anyone can throw some light into this issue, that will be great. The issue is occuring in Store module, which is again a purchased module.

Error is as below . 


Process information: 
    Process ID: 8440 
    Process name: w3wp.exe 
    Account name: NT AUTHORITY\NETWORK SERVICE 
 
Exception information: 
    Exception type: NullReferenceException 
    Exception message: Object reference not set to an instance of an object. 
 
Request information: 
    Request URL: https://www.airnursery.co.uk:443/Default.aspx?TabId=78&CustomerID=2&OrderID=6207 
    Request path: /Default.aspx 
    User host address: 92.26.9.243 
    User:  
    Is authenticated: False 
    Authentication Type:  
    Thread account name: NT AUTHORITY\NETWORK SERVICE 
 
Thread information: 
    Thread ID: 17 
    Thread account name: NT AUTHORITY\NETWORK SERVICE 
    Is impersonating: False 
    Stack trace:    at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   at DotNetNuke.Entities.Modules.ModuleController.GetModuleByDefinition(Int32 PortalId, String FriendlyName)
   at DotNetNuke.Entities.Portals.PortalSettings.GetSiteSettings(Int32 PortalId)
   at DotNetNuke.Entities.Portals.PortalSettings.GetSiteSetting(Int32 PortalId, String SettingName)
   at DotNetNuke.HttpModules.UrlRewriteModule.OnBeginRequest(Object s, EventArgs e)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)




Thanks in advance,

Krishna

next question: which ecommerce module are you using?

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Cheers from Germany,
Sebastian Leupold

   

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