I can’t do anything on my realm

I was playing on my realm and now all of a sudden I can’t access my inventory. I can’t do anything on the game. It won’t let me build or anything, but when I tried to fix it and look up the problem all the issues it gave me are not able to be fixed I even tried going on a different PlayStation. All it lets me do is go through the floor when it does that it freezes up my entire PlayStation and the screen just keeps flashing. i’ve done a lot of work on this realm and I don’t wanna start over.