Is there an existing issue for this?

• I have searched the existing issues

Observed behaviour

I'm very sorry, I closed the previous one and reopened an issue
I'm not proficient in how to use github but I'm definitely not spamming
It is precisely because this is a very good mod that I am very eager to report the problems I found.
Anyway, I apologize for my previous reckless behavior

use Poket Library spell will crush the game
I don't know if it is an error caused by unfinished spell
But it's better to bring it up anyway
It could be my fault，but I don't understand crash report

Expected behaviour

the spell should work normory

Steps to reproduce

1.start game
2.take a tome
3.take spell book"Poket Library"
4.use it

Crashlog

https://gist.github.com/nullwwwwww/77fc13891286d3d221fc0b7a8d55cca3

Environment (Singleplayer/Server, etc.)

Singleplayer

Mod version

1.5.9

Forge version

1.12.2-14.23.5.2860

Other mods

only tree mod used:
AncientSpellcraft-1.12.2-1.5.9.jar
ElectroblobsWizardry-4.3.9.jar
OptiFine_1.12.2_HD_U_G5.jar

This issue is potentially a duplicate of one of the following issues:

• [#179] [Bug] Pocket Library crashes Single-player game (60.57% match)