LUA Error

Hello, 

I am new to the game, and also not good at coding. My gf and I are playing in our world, and we had to rollback because I died. After that, I kept crashing whenever I tried to re-join, showing the error in the image below.

I've tried validating the steam files, and also removing the mods I've installed. 

Can anyone please help me fix this problem. I am attached to the world, so I don't want to start a new one. 

Thanks a lot