Issue Description: *Dynmap loads correctly into the map IP (0.0.0.0:8213) as configured, but the server IP (us3.falixserver.net) is not showing anything. I don't know how to get a URL set up to show the map.

• Dynmap Version: 3.7 Beta 4
• Server Version: Paper 1.20
• Pastebin of Configuration.txt: https://pastebin.com/CQxLpG36
• Server Host (if applicable): FalixNodes
• Pastebin of crashlogs or other relevant logs: Console start log: https://pastebin.com/i4Cg3W9K
• Other Relevant Data/Screenshots: I am using GeyserMC and floodgate plugins.
• Steps to Replicate: I don't really know I'm just following internet tutorials step by step and the URL won't work.

google falixnodes dynmap