Plugin error when server stop

[andris155]

Description (Required)

Plugin error when server stop.

Steps to reproduce the Issue (Required)

Sometimes writes plugin this error when server stop.

Expected behavior (Required)

No plugin error when server stop.

Server Log / Error Report

https://pastebin.com/AWcBF0hY

Environment (Required)

Tuinity git-Tuinity-"d5261ad" (MC: 1.16.5)
Slimefun DEV - 878 (git 485dec74)
Metrics-Module #21
Java 11

Installed Addons: (14)
DyedBackpacks vDEV - 14 (git 0a051b2b)
ExtraTools vDEV - 26 (git 0cb2ad70)
PomaExpansion v1.3.1
SlimefunFix v3.0
FoxyMachines vDEV - 44 (git d2d14cd)
EcoPower vDEV - 3 (git 18ba903d)
DynaTech vDEV - 97 (git e62bcb6b)
ExtraGear vDEV - 12 (git 4570ea2c)
SlimefunLuckyBlocks vDEV - 35 (git 3b6586d6)
InfinityExpansion vDEV - 100 (git 65892de0)
RestrictedCreative v2.4.8
SFCalc vDEV - 20 (git 29ba88c6)
LiteXpansion vDEV - 145 (git 4c36f4f9)
FluffyMachines vDEV - 75 (git 10ca2094)

[GallowsDove]

Do you have custom mobs disabled?

[andris155]

Yes I disabled.

[GallowsDove]

Should be fixed in latest, please reopen if necessary