LootChest crashes the server

[Erazes]

Hello I have a problem with the plugin. if the server restarts or start then it crashes when the plugin tries to start. there are a total of 121 chests in the world. Here is the log file of the consol Error.
I tried the start of the plugin change to a later point But that has no effect on the error.

I apologize for my bad English I can only speak German

https://pastebin.pl/view/833b9cad

Server data:
The version of the Plugin is 2.1.7
(If I take a higher version then the chest drop after loot and you can collect it)
Server: Paper 1.16.3
Installed Plugins:
advancedregionmarket-3.3.4
AntiCheatReloaded
AutoSell
BattleTraining.MC1.12-.v1.5.1
Citizens
CMI8.8.1.2
CMILib1.0.3.4
CoreProtect-19.4
CrackShot
CrackShotPlus
CraftingStore
dtlTradersPlus-6.2.6
FJetpack-0.2.4
GTACops
inWartung
LootChest-2.1.7
LPC-3.1.0
LuckPerms-Bukkit-5.2.35
Minepacks
PlaceholderAPI-2.10.9
PlayerVaultsX
ProtocolLib
QuickBoard
RandomWarp
RHSignItem_v1.6.0-1.16.2
Vault-1.7.3
ViaBackwards-4.0.0
ViaRewind-2.0.0
ViaVersion-4.0.0
worldedit-bukkit-7.2.5-dist
worldguard-bukkit-7.0.4

[Erazes]

have found an emergency solution. Server starts now without crashing but the cpu / ram peaks are no longer normal