Realm crashes whenever I try to join

This only happens on one of my accounts on any platform on this one world thats a realm. It happens on any realm or slot with that one world. And its been happening for about 4-5 months now.

 

Heres how it started

I was flying around the end dimension and landed on a custom made jungle tree, and immediately, I got disconnected, and the realm crashed. I kept trying to rejoin and every time, it would load for a long time. And then crashed the realm. After a while of trying to rejoin, i noticed that people on the discord were saying it was crashing and i realized that whenever i joined, the realm crashed. We have tried exporting the realm as a regular world and i still get kicked off and crashes the host world. 

I was thinking of deleting my account and remaking it just so i could have my username back, i dont really care about whatever was in my inventory anymore. The only reason i didnt do that is because i have limited items and purchases with that account