randomly teleported to ravine and couldnt move keeps happening please fix!

I was building an epic stadium with my friend and i got teleported randomly all of a sudden to a random ravine and couldnt move and i did /kill and then my friend got teleported there so he did /kill too and then i was there again so i thought it just happened when you used a command and it would tp someone else there. But then he left so i did /kill and started to head to my stadium and half way i was teleported again. I kept rejoining but it still teleported me there. Please fix this!