Sims 4 Seasons No Mods Option in Game

Hi! I've updated sims 4 my first pet stuff to the sims 4 seasons and im sure ive followed the steps correctly! When i opened up sims 4 it says i own sims 4 but when i click play it says Game Data is missing and not to save or my data will be gone forever. I went to see in my game what was missing and it was my mods! I quit without saving and reopened sims and i was getting the same message. I opened up the game settings and there is NO option to enable mods/script mods. Please help me fix this!!!!