Have you removed all your CC to see if you can move a teen to college?
Is this a Maxis dorm or custom dorm?
Have you entered the dorm in build mode to see if any CC is there?
If it is a mod problem, you can catch it by enabling testing cheats at the neighborhood screen, then try entering the lot. If the error box pops up, choose Delete. You should be able to enter the lot then and have a chance to track down the errant mod.
Besides a mod, the crash could be caused by an object mesh that isn't compatible with your game or became corrupted somehow. Since you haven't made it into the dorm yet, clothing and hair meshes can probably be ruled out because there's no sims at the dorm yet.
Another thing to try would be to give your sim enough money to move into a residential lot rather than the dorm, and see if that works. If moving into a dorm or house doesn't work, there's probably a mod problem.
Hi there, I don't think I removed the CC folder but will try that. Yes, it is a Maxis Uni lot and no I did not enter any dorms in build mode to see for CC. The lots have never been played.. I do have a collage hack made by twojeffs, I can't recall the name it's collage "something er other" and looks like a stack of phone books but I NEVER even used it and forgot I even had it. I will try and look for it in my dl folder and get rid of it in case if that is the problem and I will also see if I can move them into a cheap house, also remove the dl folders.. I'll let you know what happens and thank you!