Describe the bug
Version Minecraft - 1.20.1
Core - Arclight (For mods and plugins)
After trying to enter any command, an error appears in the console. In some cases, it can be ignored, but when you try to delete a crafting recipe, it is deleted only in the menu, but it is still available in the game, even after restarting the server.

To Reproduce
Steps to reproduce the behavior:

1. perform command '/ceh viewer'
2. Click on 'Some category and try delete recipe'
3. See error

Show console logs
Please show the startup logs and logs of the error itself. Pastebin.com is a nice site that allows you to paste large console errors.
https://pastebin.com/tPb4uER5

[optional] add items.yml and recipes.yml
To reproduce the bug, it could be helpful to see the items and recipes that you're using. Decide yourself if you want to provide this.

Don't know the version of the plugin you use, but should work in the latest.

No response and just 1.20.1 or 1.20.0 should not been used at all.

So should be closed.