Issue Description: *When the server sends the 'Done!' message, it crashes soon after, with the message *

• Dynmap Version: 3.1
• Server Version: paper 138 (1.16.1)
• Pastebin of Configuration.txt: https://pastebin.com/wQV8ppYe
• Steps to Replicate: install latest version of dynmap (3.1)

• I have looked at all other issues and this is not a duplicate

• I have been able to replicate this

Note: i have been able to fix this by changing to previous dynmap version

Assuming this is fixed in a later release or otherwise no longer relevant- please open a new issue if this persists.

Please post the crash report

there isnt really a crash report... it just says:
[16:17:59 WARN]: java.lang.RuntimeException: Server attempted to load chunk saved with newer version of minecraft! 2578 > 2567
after that, all server activity ceases. Cant connect, if you were connected, you got timed out. Discord SRV also stops responding.

So why do you believe dynmap is at fault for this error?

So why do you believe dynmap is at fault for this error?

When i take the plugin away, server runs normally.

What plugins do you have installed, also did you revert server versions ever?

What plugins do you have installed, also did you revert server versions ever?

Plugins (21): ChatColor2*, CoreProtect, DiscordSRV, dynmap*, Essentials, floodgate-bukkit, Geyser-Spigot, HolographicDisplays, Multiverse-Core, Multiverse-Inventories, Multiverse-NetherPortals, Multiverse-Portals, Multiverse-SignPortals, PowerRanks, ProtocolLib, QuickShop, Towny, TownyChat, Vault, WorldEdit, WorldGuard

I never changed Minecraft versions