Happens sometimes, you use the bugfixer(don't remember if it's part of the cheat mod or not) and then select the option to lock your character. You can also unlock your character to get the same result.
Most likely you selected the option to pay the paparazzi and that sadly causes this loop. The only way I found to fix this is save editing(I'm an amateur at this stuff mind you), what I did was load an older save and picked the other option and once I was finished copied the carol numbers over to my main save.
Sweet summer child. First you search the forums and then you report, also try to do it at the official forums and not the pirate one. This bug almost has a beard(slight exaggeration), if you paid attention you were called to the principal. You meet Warren there and notice a weird box(at least I did), the next part is sadly not properly told, you need to go to the roof and find Rachel and Tyna later joined by Sarah. You learn she was in the box and bugged the place or something, so that's where you have to go next. Sometimes there is a bug where the square near the door is blocked so you can't leave the roof, I used the bugfixer to unlock character then lock in front of the door but I read somewhere that you can go to the other side of the roof enter the vents and then go back to the roof and that fixes it.
Also remember being stuck at this quest and f'in around a whole lot before being able to progress, the game being a buggy mess makes me not always remember what part took how much effort to bypass.