Adding issue to backlog to address the possible corrupt pokecube on startup:
Pokecube Core: 6.31.4
Pokecube Revival: 6.13.18
Pokecube Mobs: 4.2.5
Minecraft: 1.12.2
SpongeAPI: 7.0.0-SNAPSHOT-963ff06
SpongeForge: 1.12.2-2555-7.0.0-BETA-2783
Minecraft Forge: 14.23.1.2582
Thut Core: 5.13.0.c
Thut Bling: 2.0.2
Thut Wearables 3.1.4
OptiFine 1.12.2_HD_U_C7
LuckPerms-Sponge 4.0.62
JourneyMap 1.12.2-5.5.2
Hwyla 1.8.23-B38_1.12
FastLeafDecay: 14
Dynmap-2.6-beta-1-forge-1.12
ShulkerBox: 1.3.0
TotalEconomy: 1.7.1
WorldEdit-Forge-MC1.12-6.1.8-dist
Nucleus-1.2.0-PR5-S7.0-MC1.12.2

During the startup process, where all the pokecube/mobs are being loaded, I noticed there are also several which appear to be corrupt given the error shown and special characters unlike all the others.

that should be fixed in the very latest versions, it was a corruped move entry in the move database

this should have been fixed in one of the latest releases of Pokecube Mobs