2022-04-25 06:11:51,273 [YDAWBH120][Thread:7][ERROR] DotNetNuke.UI.WebControls.DNNListEditControl - System.FormatException: Input string was not in a correct format.
   at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
   at System.String.System.IConvertible.ToInt32(IFormatProvider provider)
   at System.Convert.ToInt32(Object value)
   at DotNetNuke.UI.WebControls.DNNListEditControl.get_OldIntegerValue()
2022-04-25 09:06:57,756 [YDAWBH120][Thread:52][ERROR] DotNetNuke.UI.WebControls.DNNListEditControl - System.FormatException: Input string was not in a correct format.
   at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
   at System.String.System.IConvertible.ToInt32(IFormatProvider provider)
   at System.Convert.ToInt32(Object value)
   at DotNetNuke.UI.WebControls.DNNListEditControl.get_OldIntegerValue()
2022-04-25 13:05:19,554 [YDAWBH120][Thread:53][ERROR] DotNetNuke.Services.Exceptions.BasePortalException - System.NullReferenceException: Object reference not set to an instance of an object.
   at DotNetNuke.Services.Exceptions.BasePortalException.InitializePrivateVariables()
2022-04-25 13:05:19,569 [YDAWBH120][Thread:53][FATAL] DotNetNuke.Web.Common.Internal.DotNetNukeHttpApplication - System.NullReferenceException: Object reference not set to an instance of an object.
   at DotNetNuke.HttpModules.UrlRewrite.BasicUrlRewriter.RewriteUrl(Object sender, EventArgs e)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
2022-04-25 13:07:34,635 [YDAWBH120][Thread:53][ERROR] DotNetNuke.Services.Exceptions.BasePortalException - System.NullReferenceException: Object reference not set to an instance of an object.
   at DotNetNuke.Services.Exceptions.BasePortalException.InitializePrivateVariables()
2022-04-25 13:07:34,635 [YDAWBH120][Thread:53][FATAL] DotNetNuke.Web.Common.Internal.DotNetNukeHttpApplication - System.NullReferenceException: Object reference not set to an instance of an object.
   at DotNetNuke.HttpModules.UrlRewrite.BasicUrlRewriter.RewriteUrl(Object sender, EventArgs e)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)