Posture better exception error

Hi! Hopefully you guys can help me. I keep trying to play sims and I get as far as about to the household and all of sudden my saved files are like where my sims arent loaded in and i have to make anew household and then before I can load into the lot, it breaks and gives me this:

Iv'e tried looking for posture animations in my mods folder and i went to another sims 4 mod outdated website to see if a mod was broken but I couldn't get anything. Can someone help me on what to do.