Sims won’t move or do actions

@LlamaLumps44  there are a couple of cheats that can reset Sims.  Have you tried any of them?🤔  In case you haven't or didn't know about them they are done as follows:

A). Simple Reset
1.)First open the Cheat Box (if you are on a PC) by pressing
Ctrl + Shift + C at the same time.

 2.) Then type Resetsim Firstname Lastname  and hit the Enter button(So if your stuck Sim was Bella Goth you would type Resetsim Bella Goth and hit the Enter button .) 
This should fix your Sim.  If it doesn't, then try this method:

B). Reset with Testing Cheats
1.) First open the Cheat Box like you did before ( press Ctrl + Shift + C at the same time.)
2.) then enable Testing Cheats by typing in the box Testingcheats true (or Testingcheats on also works) and pressing the Enter button. (You will see a confirmation message if you did this correctly). 
3.) then "Shift click" by holding down the Shift button while clicking with your mouse on the Sim you want to reset. 
4.) then choose Reset Object (Debug) from the menu that popped up when you shift clicked on your Sim.  This should reset your Sim
5..) turn Testing Cheats off by bringing up the  Cheat Box again and typing Testingcheats false (or Testingcheats off) and pressing the Enter button. 

Please update us on whether this works for you or not! 😇