Sims 4 won't start

Hi everyone!

So, I am facing an issue with trying to launch and play Sims 4. I only started having this issue after the infant update. My Sims game refuses to start and I have no idea why! I have removed all my mods and the sneaky script.files that has ended up together with my CC-files, but the issue remains. Therefore I assumed that my CC must be causing the conflict and won't allow my game to start. So after removing my mods, I started splitting my CC into separate folders by 100, so 100 CC went into one folder and the rest into others. After splitting my CC each time, I tested launching the game. The game did start, when I had put back around 300 CC-files into my mods folder. Then when I went on to put back another 100 files, the game didn't launch. Therefore I drew the conclusion that some files in that specific 100 files-folder must be broken. So I started splitting that into half and putting them back one by one. The issue however still remains. I noticed that some blueprint, tray and BPI files snuck their way into my mods folder, so I put those back into the tray folder. Still Sims won't start. I have before tried clearing my localthumbcache and no mods are in Sims 4, only CC. I am relatively new to CC and mods, so it might be some obvious issue causing this, but I have legit sat for hours and troubleshooted - still nothing and it's making me crazy. 

Does anyone know what I can do further? Should I just delete all my CC and install them again? The Sims game does start when I remove all my CC, but it just sucks to remove everything, since I really want to play using mods and CC. Plus some CC are functional, considering I have been able to play the game using some CC. 

Grateful for any kind of help! I can provide screenshots too of the CC I suspect to be broken, in case someone else is struggling with the same thing.