A lot of unreal engine crashes,and not starting

I was having alot of unreal engine crashes, so i did everything the troubelshooter of epic games told me to do.
the latest thing i did was reinstalling everything, but its still crashing, and some scenes aren’t even starting up now.
I’m at a point where i dont know any longer what i should do. please help.

i added an image of the crash report i get of the scene that is not starting at all.

I regularly run into this issue after doing many changes during development iterations.

My only two solution up to now are:

  • copy the project to a new path, but only the .uproject and the folders Config + Content

  • create a new project, migrate all objects, including the maps.

    and ex/import or set all the project configuration.

it was a scene from the marketplace that didnt open, and i recreated that project multiple times, but it still crashes, and also when a project does open, anything i do makes it crash