Crafted a decently complex spell...
Projectile

Gravity Well

Zone

Spell that on kill, deals damage to all nearby entities (can't remember by name)

Had some modifiers as well, but I can't remember what all was on them, or what levels they had.
Can't check either, world is unopenable.

Crash: Deserialization of Null object.

Crash log is available.
crash-2019-08-13_19.33.00-server.txt

You need to update, this was fixed long ago