WARN Errors when server is booting up

Summary

Boot a 1.21.1 Paper server.

Steps to reproduce

1. Download Minecraft 1.21.1 Paper server (paper-1.21.1-132.jar)
2. Put MythicMobs-5.8.0.jar inside the Plugin folder
3. Start the server

Current behavior

Multiple Warn logs https://pastebin.com/rkuX50LV

Intended correct behavior

No Warn logs every time I start the server.

Server log file

https://pastebin.com/rkuX50LV

Debug log snippet

.

Proposed fixes

I don't have knowledge in Java neither in plugin development, but I could see that the message repeat multiple times changing only the line MythicMobs-5.8.0.jar//io.lumine.mythic.bukkit.entities.Bukkit{MOB}.spawn(BukkitAllay.java:{NUMBER}) for every mob in the game