Server Crashing when some plugins are triggered

[Kangdil]

I was testing on my server, first. It crashed and i think it was a mob stack plugins. So then i removed it, now. It still happens. And it's on GriefPrevention I don't understand yet the console made no sense

Console (the latest crash):

/home/minecraft/signal/start_cmd: line 1:  4377 Killed                  
/opt/java/17/bin/java -Xmx${SERVER_RAM} -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 
-XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 
-XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCount
Target=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 
-XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -DIReallyKnowWhatIAmDoingISwear -Djline.terminal
=jline.UnsupportedTerminal -Dlog4j2.formatMsgNoLookups=true -jar server.jar

My Plugins: 

ChestShop, Citizens, EconomyShopGUI, GriefPrevention, HolographicDisplays, LiteEco, LuckPerms, 
MinehutPlugin, Multiverse-Core, PlayerWarps, SkBee, Skript, Vault, ViaVersion, Wild, WorldEdit, WorldGuard, 
WorldGuardExtraFlags

I'll appreciate if you tried to help

---