Tournaments don't load and php errors

Hello, I bought this theme that I find incredible. However, I encounter errors when creating tournaments. The loading does not load and when I go to “Posts” -> “Create-Tournament”. The page is empty. Someone can send me the time of this page because it doesn’t display. I have already installed several WordPress and reset completely to see if it fixed the problem. Still not.

My 2nd problem is when we have a match/tournament page, at the bottom there are errors that redirect to the file tmp-tournament-single.php

I modified the different steps to adapt my site to the sizes necessary for import but this does not solve the problem.