Game kicks me from my singleplayer world when placing elevators

[UsernamethatIdontcareabout]

I made an elevator, and when I placed it, the game instantly kicked me out of my singleplayer world for network issues? While writing this I tried breaking the block as it lets me go in the world after I place it, but my game just crashed. I have no idea why it does this. 1.21.8 btw

[VsnGamer]

Can you provide a crash log?

Thank you!