[1.16.5] Server instance randomly dies

[Supermarcel10]

Environment

Pterodactyl Panel: 1.11.2 Pterodactyl Node: 1.11.0 Node Specifications:

• 24 CPU Threads
• 128GB RAM
• Swap Disabled
• 900GB NVMe RAID1

Minecraft Version: 1.16.5 Build Version: 1.16.5-53f209b9 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT, Forge version 36.2.39)

Mods:

• Create: Above and Beyond (modpack)
• A few server mods like world border. List can be provided if necessary.

Plugins:

• BanItem v3.4
• ChunkMaster v1.4.2
• CoreProtect v21.3 (DISABLED)
• EssentialsX / Chat / Discord / DiscordLink v2.20.0-dev+40-996285c
• GSit v1.0.7
• InvSee
• LuckPerms v5.4.15-Bukkit
• miniMOTD v2.0.10-Bukkit/Bungeecord
• OfflineTeleporter v0.6
• Vault
• WorldEdit v7.2.10-Bukkit

Describe the bug

Server instance suddenly stops. No prior TPS drop, no internet packet drops/issues. Other instances on node continue running as normal. Crash report in crash-reports is not created. Server instance is force shut down.

Expected behavior

Server continues running.

To Reproduce

Unknown / Unable to reproduce

Screenshot/Video

N/A

[Kotori0629]

What? Is there a log?

[Supermarcel10]

After inspecting it more, I was unable to find any specific issues that stand out except Issue #699 and what seems to be a serialisation error.

The last ~60 minutes before crash can be found here: https://pastebin.com/Vx6Jvmkm I have truncated the oversize error (Issue #699), and removed user's public IPs.

I would like to attempt and fix Issue #699 first and try to reproduce the issue again to rule out the possiblitity of Issue #699 being the direct cause of this.