Is there still a chance of retrieving the old user Database? I can't remember a bunch of the challenges I solved (Crackits mainly), and don't wanna redo some

we really cant answer this question. because we have no idea. the provider told us they have a backup.

it pays to keep notes
i used to not keep notes at all and i had to completely redo several sites on several occasions - i keep notes now, even if it is just to write down the final password.

on the subject of your old provider going down and being hacked - i hope they didnt use your php11 problem to do it, it seemed possible to do quite a lot with it, are you sure it was secure ? i didnt test it too much myself but some people would

Hello

we tried out everything with the challenge and we didn't found any vulnurabilities. I don't know so much about ***, but I was quite sure (after going through a list of commands) that there aren't any dangerous possibilities
Finally I am very sure that the server crash has nothing to do with this challenge, because another server of the company was attacked the same time, too.

bye, Erik