Assertion failed: ReaderPos + Num <= ReaderSize [File:D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Serialization\BufferReader.h] [Line: 52]

I have two projects now that suddenly I can not access. This crash report happens every time. Please help, I am reletively new to Unreal and am not aware of coding. I would need a step by step on how to fix it. Thank you.