Issue Description: I can't do a full render of my server. It gives the error in the photo. I tried adding it in worlds.txt, but still won't work.

• Dynmap Version: 3.6
• Server Version: paper 1.20 build
• Pastebin of Configuration.txt: https://pastebin.com/Ex85ESyZ
• Server Host (if applicable): Pebblehost
• Other Relevant Data/Screenshots:
• Steps to Replicate: Run the command /dynmap fullrender

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

Your deftemplatesuffix values is malformed, check with the available values: https://github.com/webbukkit/dynmap/wiki/Configuration.txt#deftemplatesuffix

can I assume this as fixed now? (please close the issue tracker if so)

Sorry about that.