My kid sims wont go to school

Ok so I've seen a few other people ask this, but all the replies are talking about things i dont know about.

My kids in the sims just wont go to school, the button "go to school" doesnt work, when i click on them theres no option to go yet i still get calls from the principal about being late, i cant seem the figure out what mod could be stopping this, and i have loads of mods so it would take ages to scroll through them all when i dont even know which one could be the problem. They wont even go to school on a different plot which i heard worked for some but not me. And I dont think its my save file because this has happended before.

Please help me as it takes away a great aspect of the game and just makes me not want to keep playing with sims that arent adults. Also my adult sims can still go to work, its just school that isnt working and I just want it fixed.