DW Version 9.12.2 , did we miss any configuration? the solution is upgraded from 9.10.* to 9.12.2
This is not happen always...
Full Error :- 2021-11-24 20:48:32.869: Object reference not set to an instance of an object.
System.NullReferenceException: Object reference not set to an instance of an object.
at Dynamicweb.Analytics.Experiments.Experiment.GetExperimentByPageID(Int32 PageID)
at Dynamicweb.Analytics.Experiments.Tracker.Track(Int32 pageID)
at Dynamicweb.Frontend.PageView.Load()
at Dynamicweb.AspNet.DynamicwebHttpHandler.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
2021-11-24 20:48:32.874: Request headers: [ "Connection", "Accept", "Accept-Encoding", "Accept-Language", "Cookie", "Host", "Referer", "User-Agent", "sec-ch-ua", "sec-ch-ua-mobile", "sec-ch-ua-platform", "upgrade-insecure-requests", "sec-fetch-site", "sec-fetch-mode", "sec-fetch-user", "sec-fetch-dest" ]
2021-11-24 20:48:32.874: Request item keys: [ "DynamicwebLiveIntegrationIsIntegrationActive", "owin.Environment", "EcomCart:CustomCartContext", "MS_HttpRequestMessage", "AspSession", "PermissionContextStack", "Dynamicweb.OMC.VisitorEngagementSettings.Config", "Dynamicweb.OMC.VisitContext", "AspSessionIDManagerInitializeRequestCalled", "alternateUrlKey", "ExecutionTableMapper", {}, "DWPAGEVIEW", "Dynamicweb.Environment.Web", "Dynamicweb.Tracking.Tracker" ]
2021-11-24 20:48:32.874: Request form: []
