Instant crash when loading my old world

I tried to add the minecraft client from ATlauncher to amd adrenaline and it kept giving me BOSDs and messed up my ATlauncher so I had to reinstall it. I copied my old world, reinstalled the modpack I was using and now when I try to launch the old world I get an instant crash, making a new world works, and removing distant horizons also works but removes all the progress I made on the world. (only my inv stays)
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