So I tried this:
Here are the steps you need to follow in case this happens again:
1. Close Studio.
2. Open Command Prompt as administrator.
3. in Command Prompt type: cd C:\Users\kevin\Downloads\new_PersistenceRepair and then hit Enter (there`s a space between cd and that path).
4. Type PersistenceRepair.exe -rs and hit Enter (Twice if required).
5. Type PersistenceRepair.exe -rts and hit Enter (Twice if required).
6. Studio should be activated now.
I think my persistence device needs to be updated? I can nearly fix the problem myself..
