Hi, we just got a pair of server crashes relating to a player putting an infinity backpack into a curios back slot, the only way to fix it was to NBT edit the players inventory to remove. I have also heard about a similar issue with the meat feeder helmet like the issue below
TheIllusiveC4/Curios#241
Server Atm7 Public, pack version 0.4.10

Industrial Foregoing Version:
industrial-foregoing-1.18.2-3.3.1.1-3
Titanium Version:
titanium-1.18.2-3.5.6-38
Crashlogs:
https://gist.github.com/Mitchell5200/bb63ba40796a8efef81375c0040ec4ea
https://gist.github.com/Mitchell5200/f589f29a23baa63670a67aff80f3953f