Customization with Minecraft - clicking Connect to SFTP doesn't work

System Information

Field Value
Operating System Linux - Debian GNU/Linux 13 on x86_64
Product AMP ‘Proteus’ v2.8.0.8 (Mainline)
Virtualization Docker
Application Minecraft
Module MinecraftModule
Running in Container Yes
Current State Stopped

Problem Description

Issue

I’m trying to connect to STFP so I can upload my custom modpack to the server but whenever I click on “Connect to STFP” in the top right corner of the File Manager area it doesn’t work and it just pops up a new tab and says “blank” in the URL and sometimes is a light purple color when I open it but nothing appears no matter how long I wait and it’s just one solid color which is always either light purple or white.

Reproduction Steps

  • Open Game Panel
  • Click manage server instance
  • Then enter the file manager
  • Then click “Connect to SFTP” in the top right corner

Note: I know I probably just set something up wrong, but any help would be great cause I’ve wasted so much time going in circles asking google and YouTube to no avail.