Bukkit

Good day, i get the following errors in console when i try to manually spawn in a mob and when they spawn automatically.

i've looked through all the other tickets that was posted and still no luck.

i've gotten to the point where i can spawn in loot and the effects work.

Mcmmo is installed, but i have tried it without(and without any other plugin installed) and also no luck

Bossbar is disabled

Running spigot-1.12.1-20170809a

Errors when mobs are spawned in: https://pastebin.com/nPY8vNkD

Config:https://pastebin.com/Hkm7sCc6

Thank you

EDIT: Infernal Mobs Spawn naturally but i still get errors if i spawn them in with /im spawn spider