Could not call method 'public static org.bukkit.inventory.meta.ItemMeta'

[Llopeando]

Information

• Server version: https://mcpaste.io/b451b6ffdf02360e

• Full output of /mv version -p: https://mcpaste.io/52c195b20ae026a8

• Server log: https://mcpaste.io/685cf35b049ae242

Details

I was not able to reproduce my issue on a freshly setup and up-to-date server with the latest version of Multiverse plugins with no other plugins and with no kinds of other server or client mods.

Description
Sometimes, probably related to inventory updates, the error log appears, mentioning only Multiverse Inventories.

Steps to reproduce
Just playing on the server

Expected behavior
Not giving any error in console

[benwoo1110]

Did this bug only happen after updating to 1.21.4? Is there a particular like such as banner when the error occur? And also full server logs please.