my sims

Recently, the mods hat i've downloaded in the sims 4 have been acting up but i keep finding a solution to it, but there is still one problem that has been bugging me lately and doesn't really effect my game in any negative way.

I have these mods that i've downloaded and don't show up in the game when it has before, usually i get a notification warning (this warning tells me there's a problem and gives me a link of how to fix it but doesn't tell me what is causing that problem) and is usually from the whicked whims mod. These are the mods that i've downloaded, used it perfectly fine one time and the next time i play the sims, it unfortunately doesn't show up in my game; whicked whims, first love, serial killer and the mc commandcenter mod. I've tried re-downloading the mods and restarting my game/laptop but whenever i check my game i don't see any change.

Just to clarify when i first downloaded these mods they were working perfectly fine until I exited the game and played again the mods not to be there anymore.

If anyone knows a solution to this, i'm in need of help, thank you!