I'm getting this constantly in the logs about every 2-3 seconds. Currently Crew Chief does not work with iRacing even after reinstalling. Other sims work fine.

23:04:10.889 : Error mapping game data: Object reference not set to an instance of an object., at CrewChiefV4.iRacing.iRacingGameStateMapper.mapToGa meStateData(Object memoryMappedFileStruct, GameStateData previousGameState)
at CrewChiefV4.CrewChief.Run(String filenameToRun, Boolean dumpToFile)

What should be the next step to debug?

I recently restored drive from backup, I'm wondering if it can be some sort of permissions issue. I just couldn't determine the problem from the error message.

Using 4.9.1.4