I'm getting a bunch of errors in the latest Magic v10.9.3-df02033 in Paper 1.20-130 that look like this:

[20:44:36 WARN]: [Magic] Invalid item in config: potted_warped_fungus (POTTED_WARPED_FUNGUS isn't an item)

Any ideas?

Those items don't exist anymore, lots of things changed in 1.20 (or I think 1.20.5 and up- are you on 1.20 exactly?)

The warnings can be safely ignored. I will try to clean it up later, but I'd like to keep the items available for older MC versions so it may just be a matter of hiding the warnings.