Crash with piggy custom enchant shop

[BlackAngels56]

Please make sure your issue complies with these guidelines:

• • [x] Server Software must be the official PMMP w/o vanilla patching plugins (i.e. TeaSpoon)
• • [x] Issue must have not been reported previously
• • [x] Make sure you are on the latest version of PMMP & PiggyCustomEnchants
• • [x] Have a detailed title.

Link to crashdump: https://hastebin.com/oqorokaqej.cs

Extra Information

[Aericio]

Poggit was down.