CC Crashing whenever press Start Application

[kruts]

from event viewer
Faulting application name: CrewChiefV4.exe, version: 1.0.0.0, time stamp: 0x6045457d
Faulting module name: KERNELBASE.dll, version: 10.0.18362.1411, time stamp: 0xeb8644a5
Exception code: 0xe0434352
Fault offset: 0x0000000000043b29
Faulting process id: 0x2964
Faulting application start time: 0x01d71fa81520491a
Faulting application path: C:\Program Files (x86)\Britton IT Ltd\CrewChiefV4\CrewChiefV4.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report Id: b1fd5bcb-8aea-43d3-a305-9ec50b1b31ba
Faulting package full name:
Faulting package-relative application ID:



Application: CrewChiefV4.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ArgumentNullException
at Newtonsoft.Json.JsonConvert.DeserializeObject(Syst em.String, System.Type, Newtonsoft.Json.JsonSerializerSettings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.String, Newtonsoft.Json.JsonSerializerSettings)
at CrewChiefV4.Overlay.OverlayDataSource.updateUserCh artSubscriptionsFile()
at CrewChiefV4.Overlay.OverlayDataSource.getSubscript ionsFileLocation()
at CrewChiefV4.Overlay.OverlayDataSource.loadChartSub scriptions()
at CrewChiefV4.CrewChief.Run(System.String, Boolean)
at CrewChiefV4.MainWindow.runApp()
at System.Threading.ExecutionContext.RunInternal(Syst em.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threa ding.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threa ding.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Threading.ThreadHelper.ThreadStart()

[mr_belowski]

delete Documents/CrewChiefV4/chart_subscriptions.json, should be enough to get it to start up

this will be fixed in the next version

[kruts]

delete Documents/CrewChiefV4/chart_subscriptions.json, should be enough to get it to start up

this will be fixed in the next version

thanks you..works