Title explains it all. There was an issue where the old WorldConfig.dat removed the Gladiators npc and spat out Miniplugins error logs due to the config file being misconfigured.
This resolves the issues temporarily, although Kits, House, Ruins, Snake data, etc still have to be added.
Removed Carl since Carl works only with the npc "Carl the Creeper" in the database. Added locations for the DUELS arena. (Use /newnpc to make the Gladiators npc, and for metadata, specify DUELS).