Garmin Black Screen on all G1000-Aircraft

I don’t know how you fixed your problem, but for me my FS is still unusable. I uninstalled G1000 NXI, deleted all Workingtitle files and my Community folder is empty. I uninstalled MSFS and reinstalled a clean version. All my planes with Garmin all have black screens in the instruments. I am discouraged. I do not know what to do. How did you solve your problem?