I have to delete and reinstall Minecraft because I have a bug that can only be fixed in this way (the game does not start) if I delete Minecraft and reinstall it, will I still have my worlds or will they be deleted?
If you have a Playstation Plus membership, scores and other data are stored in the cloud. So your worlds should actually be preserved.
More information can be found here:
I have access to PSN but the account on which I have the worlds unfortunately does not have a membership. Is that still possible?
It's best to go to memory in the settings and check whether the data has been uploaded. Unfortunately, I don't know the right term in the settings at the moment, you should just have a look yourself.
However, it is important that the PSN account you are playing with and are currently logged in has PS +.
Okay thanks
Yes will work