Sims 4 won't open anymore [d6f91ffb:29f00e76:00000000:00000000]

I have bought the sims 4 base game before and played in origin before. I downloaded G4TW full game version afterwards. A few weeks ago I accidentally opened the base game, while I was just trying to open other game from origin. I think that might have caused this problem, because when I today opened my G4TW version TS4_64.exe file it says:

"Unable to start: The contents of your user data directory were created by a newer version of The Sims and cannot be loaded. Please update your game via Origin to play.
[d6f91ffb:29f00e76:00000000:00000000]"

What should I do now?

G4TW doesn't have "full game version". Are you talking about Tarac's all-in-one?

Here are all G4TW downloads, you're probably missing some DLCs: https://www.games4theworld.club/t53-all-games4theworld-downloads

The newest one is StrangerVille but if you're missing some more DLCs then you need to install them first. Here's the installation guide: https://www.games4theworld.club/t21806-must-read-how-to-install-the-sims-4-correctly

I mean basically the G4TW version has worked with mods and all old saves for now, but today i opened the sims 4 original accidentally. Does it not work, if I don't have the newest strangerville downloaded to it? I think I have the all-in-one thing downloaded, I downloaded base game and all dlc. It has worked before, but today it hasn't worked and gives this error message.

Your game on Origin is version 1.50.67.1020. You started the game and it saved some info to your "Documents\Electronic Arts\The Sims 4" folder. That's why you can't start the cracked game - it has lower version. Updating it (by installing DLCs you're missing) is the safest way to make it work.

Yeah this fixed it, thank you so much. I just downloaded the newest StrangerVille to my G4TW folder, extracted the .zip file in there and nothing else was needed.