[Crash]: java.lang.NullPointerException: Cannot invoke "Object.hashCode()" because "pk" is null

[Barerock]

Mod Loader (Required)

Forge

Minecraft Version(s) (Required)

1.20.1

Mod Version(s) (Required)

8.1.21

Other Mods Involved (Required)

Yes

Notes (Required)

I was tabbed out.
Report mentions Stylish Effects and pk matches a datapack called PK's racks, though I see no other reference that would make me think pk isn't just an internal variable or something of the like.
I haven't experienced this crash before in about 60-100 odd hours with this pack.

Crash Report (Required)

https://gist.github.com/Barerock/9d2908e2c7eb3636002290c4bd2a57cb

latest.log (Optional)

https://gist.github.com/Barerock/785606c4506595c42d6912fcc8a63b34

[Anonyku05]

Have the same error, it also causes the mod to disable all active ressource packs