Crew Chief Crashing when on Iracing

Evening All

I have had an issue a few times whereby crewchief crashes when racing on iracing mid race.
I have gone into the error log and found this error:

Application: CrewChiefV4.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.IO.FileNotFoundException
at CrewChiefV4.UserSettings..ctor()
at CrewChiefV4.UserSettings..cctor()

Exception Info: System.TypeInitializationException
at CrewChiefV4.MainWindow..ctor()
at CrewChiefV4.Program.Main()


and then this error....
Faulting application name: CrewChiefV4.exe, version: 1.0.0.0, time stamp: 0x5b72c9c9
Faulting module name: KERNELBASE.dll, version: 10.0.17763.134, time stamp: 0x1659a33b
Exception code: 0xe0434352
Fault offset: 0x0000000000055299
Faulting process ID: 0x1fac
Faulting application start time: 0x01d481ea34a0e35e
Faulting application path: C:\Users\Andrew Gorton\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CrewChiefV4.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report ID: d91fad80-a0b0-4a6b-ade4-7cbff3550135
Faulting package full name:
Faulting package-relative application ID:


I have tried uninstalling and reinstalling the program but it happened to me again.
Any suggestions would be greatly appreciated as i don't want to have to go back to the standard spotter packs on iracing.

thanks
Andy