Unreal Project alwasy crashes when opening

Hi I have this weird problem, that corrupted my whole project. When I try to open my project this pops up:

Assertion failed: Export.ObjectName!=NAME_None || !(Export.ObjectFlags&RF_Public) [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/LinkerLoad.cpp] [Line: 3874].

I don’t know what to do in this situation PLEASE HELP
I am on version 4.23.1

Try to open the project in Visual Studio and see if it is an error in any of your codes

I got a similar error with the “Assertion failed” part. The loading splash window gets to about 95-98% and then crashes before the level fully loads. So far it’s only when I try loading a level / project I’ve already worked on…not a new project. I’ll try starting a new project, but don’t want to create a new project every time to work in the engine.

Version 4.23.1

Try to reinstall Unreal Engien, and if taht don’t work, try to reinstall the Epic Game Launcher