My sims 4 isnt working, not doing commands.

I know this is a little bit late, 2018 but i still have the same problem, but i did find a solution! If you have another sim in your household then get that sim to talk to your sim with the problems. Soon after they begin chatting your glitched sim that wasn't doing any commands should be back to normal!! Hope this helps for the players looking at this in the future. Have fun, Haley