If the server can start without problem, then start it up, and go to the dashboard, go to the command line, and put in /kill @e[type=item] this may resolve your issue.
Minehut can be limited to what you want to change in your config files depending on how specific you want to get, but you can access config for different plugins and what not through the file manager tab.
If the server is running perfectly fine, but it keeps crashing your game, once the servers up run /kill @e[type=item] in the command line via dashboard.
Minehut has been experiencing several issues today, and we're doing our best to get Minehut back at a stable level, this could be the cause. Join the discord for updates!
Many other people are having similar problems right now, so sorry you're having issues. As said before, feel free to join the discord to get very quick updates!