System.ArgumentException: القائمة 'Event Items' غير موجودة في موقع حيث عنوان URL 'https://www.sharjah.ac.ae/ar/Research/rf'‎. ---> Microsoft.SharePoint.Client.ResourceNotFoundException: القائمة 'Event Items' غير موجودة في موقع حيث عنوان URL 'https://www.sharjah.ac.ae/ar/Research/rf'‎. --- End of inner exception stack trace --- at Microsoft.SharePoint.SPListCollection.GetListByName(String strListName, Boolean bThrowException) at UOSMainWebSite2013.UOSMainEventsandActivities.UOSMainEventsandActivitiesUserControl.<>c__DisplayClass2.b__0() at Microsoft.SharePoint.SPSecurity.<>c__DisplayClass5.b__3() at Microsoft.SharePoint.Utilities.SecurityContext.RunAsProcess(CodeToRunElevated secureCode) at Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(WaitCallback secureCode, Object param) at Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(CodeToRunElevated secureCode) at UOSMainWebSite2013.UOSMainEventsandActivities.UOSMainEventsandActivitiesUserControl.Page_Load(Object sender, EventArgs e)