these crashes are caused by basically the same problem that caused this crash in csgo: https://forums.alliedmods.net/showthread.php?t=322222 which was patched i believe in january?
there is a fix i collaborated (should say "helped test" haha) with the creator of ^ that original patch ^ here (xtract the sourcemod folder to your /tf/addons/ folder) for community servers
according to backwards this issue was raised to valve years ago so uh Cool.
here's an example crash dump if you want one: https://crash.limetech.org/gtzfvfv2ngsz
and here's the messages it'll throw in console if someones trying to crash your server:
outside that patch this ones on valve for fixing pubs lol