System map not loading properly on server

[KEEGUNATOR2]

Expected Behaviour

The system map to load when doing (server ip):8888/index.html, like when using localhost

Actual Behaviour
Takes a very long time to load and shows a very basic HTML page with a refresh icon and non working search bar. I am sure the port is forwarded correctly.

Screenshots

Environment

• Minecraft Version: 1.16.5 Mohist server, running on a Raspberry Pi 4 8G (Runs quite well actually if your running a small community server)

• Installed Mods:

• Architectury

• Create

• Flywheel

• Joy of Painting

• Lightman's Currency

• MTR

• More Minecarts

• Mr Crayfish's Furniture Mod

• Mr Crayfish's Gun Mod

• Obfuscate

• Plushie Mod

• Securitycraft

• XL Food Mod