The second plugin I've bought from this dev that just doesn't work. 1.20.4 with console errors and no functionality. No faith it will be fixed as ItemsAdder seems to be the only mod the dev gives any attention to, the rest are soon forgotten about despite being paid plugins.

Still errors on my 1.20 server and no response on the github. Here is the error: https://pastebin.com/XaLgEEh1

A bit odd, but you can make all of customization, except when you want to ignore some item... That one rule is really missing