Issue Description: Server world capacity is large It's over 80gb in the world. It's over 200gb in dynmap rendering. There was a case like this in the past. So after removing the dynmap, this bug didn't happen. So I did rendering again after initializing dynmap. However, these errors have recently started to occur again.

• **Dynmap Version: dynmap version 3.1-beta7
• **Server Version: Paper 1.16.5
• **Pastebin of Configuration.txt: https://pastebin.com/9VtuPsxG
• **Server Host (if applicable): Self Hosting
• **Pastebin of crashlogs or other relevant logs: https://pastebin.com/Yg3C7peD
• Other Relevant Data/Screenshots: I'm using this texture pack and these plugins and my map is from alpha .8
• Steps to Replicate: Please be clear in this section so we can replicate your issue

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

Duplicate of #3251