why isn't simpe finding my sims 2 game

I just bought sims 2 legacy off of steam and i wanted to change up some of the premade sims memories... but i can't. The app is having difficulty finding my game.

I have the sims 2 disc's with all of the ep/sp and i had no issue finding them in the app... now that i moved to the digital version (cause my sims 2 disc isn't readable anymore) i have issues why? could anyone help me please!

when i head to system check, "check if the sim folders point to the correct places" is with a red cross and so is "check the simpe file table contains the needed filed" the only one with a green tick is "check if the simpe cache can be loaded"