Issue Description: Dynmap did not startup with seemingly no changes from when the server was last online.

• Dynmap Version: 3.1-beta5
• Server Version: Purpur 1.16.4-906
• Pastebin of Configuration.txt: https://pastebin.com/5SETL3z2
• Server Host (if applicable): selfhosted dedi
• Pastebin of crashlogs or other relevant logs: https://hastebin.com/itoyomateg.properties

[Y] I have looked at all other issues and this is not a duplicate
[Y] I have been able to replicate this

closing due to dead link