Issue Description: I am hosting a Forge server with about 110 mods. Upon startup, the server crashes due to the dynmap causing an exception in the server tick loop.

• Dynmap Version: Occurs with the first 3.0 beta and up to the current version (3.1 SNAPSHOT).
• Server Version: 1.12.2-forge-14.23.5.2854
• Pastebin of Configuration.txt:
• Server Host (if applicable): None.
• Pastebin of crashlogs or other relevant logs:
• Other Relevant Data/Screenshots: Mods used are in the crash log.
• Steps to Replicate: Start up a forge server running the version previously stated using the startup arguments above and the mods provided in the crash log.

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

Does it crash without those specific startup args?
For example if you used "simple" args like java -Xmx10G -Xms10G -jar forgeserver.jar nogui
Does it still crash during startup?