Help Glitches :( !!!!!!!!!!

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
I thought he would join my game and we could both finish making my hotel together
What actually happened was...:
Describe what happened here
he got stuck underground it multi kills him and then the world is in half and everything is blocked
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...