"Unhandled Exception" occurred

[lwtung15]

I downloaded the DDSPB2020 from STEAM and I cann't run the game as there were "Unhandled Exception".

:Conversion from string "default " to type 'integer' is not valid.
Stack Trace:
at CompilerServices.Conversions.Tointeger(String Value)
at DDSPB2020.ModGlobals.LoadLimits()
at DDSPB2020.ModMain.LoadProgram()
at DDSPB2020.ModMain()

I just wonder how I can fix this problem cause I cannot find any solution from the Google / the WolverineStudio website.