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Please describe your question or what you need help with, in the best detain you can.
To be short I was trying to make commands to a certain item and when I click the item, it doesn't execute a certain command and errors in console.

[05:49:38] [Server thread/ERROR]: [ItemJoin_ERROR] {ItemCommand} There was an error executing an item's command as console, if this continues report it to the developer.

Pastebin
items.yml: https://pastebin.com/4ez8CNaX
config.yml: https://pastebin.com/vRG2qyLr

Please complete the following information:

• Latest version available currently (14th Feb)
• Spigot 1.16.4

Additional context
Add any other context about the problem here.

Answered via discord, update to latest snapshot resolves the bug.