It's the Allow Stoves mod!
@jamieseevee All I can say about the game showers and toilets is they are working fine for me so you may have something else wrong. The stove mod that @crinrict mentioned is a likely candidate. Or it could be some other CC item too other than showers or toilets. That particular venue type seems to very picky about what mods and CC you can use in it so it could be almost anything. In my build, other than the CC beds and some artwork, I didn't use any other CC. All the CC beds are now out of it because of the problems they gave me.
I did think of one thing you can try though. Try changing the lot venue type to residential and then back again to university housing. That should get it to reset the university housing requirements panel because it will force the game to make a new count. If it doesn't work the first time, try again by changing it to residential, exit the lot and then reenter the lot and change it back to university housing. You could go as far as saving and exiting the game, restarting the game and going into the lot but that probably won't make much if any of a difference. If it doesn't work the first time, it probably won't at all. I don't know if it will work but just in case, before you try, you might want to make a copy of your save and put it somewhere safe before giving it a try. It shouldn't give you any problems, but sometimes with this game, you never know. Better safe than sorry.
