Game won't start

I don't know what to try anymore. I had tried out the BeamMP mod and it was working alright. I uninstalled it nevertheless for some reasons.
Now, my game won't start up. I can start the launcher from steam and launch the game, but then I get stuck in the loading screen from there on with the screen blacking out, being half broken or showing the loading bar. I cannot get to the Home screen even after letting it sit for half an hour.
I have looked at this https://www.beamng.com/threads/fixed-game-loading-issues-12-06-2020.71491/ thread since this seems to be the same problem, however I don't have any folder Documents\BeamNG.drive\...
I tried re-installing the game, verifying it's file integrity by steam and the launcher itself and I have looked through the game files whether I had mods or anything still installed. Nothing.
Attached is the screen that I'm basically stuck in only it blacking out every once in a while.

 

Here the same:/

 

92355

Thanks Mate

 

Thank you very much. I will do that right away tomorrow. I will let you know if I can resolve the issue.

 

So I finally managed to fix the issue. I had to disable syncinc with OneDrive (which Micrsoft is making very hard for you...), had to get rid of every single file left of the game and then reinstall it. It is working now, thank you very much. Would've been a shame after over 600h...