Describe the bug
Smacked the Monolith and instantly crashed to desktop. I have a few other mob-affecting mods on this instance and can attempt to reproduce without them if necessary, but the crash log only seemed to indicate an issue with the monolith reading what mobs it can spawn from the Maelstrom config.

Crash Report: https://gist.github.com/SandwichHorror/f33f1681eb96092bbe9ee67515805561

To Reproduce
Aggro the Monolith.

Forge Version and Maelstrom Mod Version
Latest 1.12 Forge; 0.4.1-snapshot.3