[Testserver] RCON not working

[dmgnr]

Describe the bug
As you can see at the title ;-;

To Reproduce
Steps to reproduce the behavior:

1. Get the testserver up and running
2. type anything in

Expected behavior
Expected RCON to work and send the command to the server

Screenshots

Desktop (please complete the following information):

• OS: [Windows 10]
• Browser [Chrome]
• Version [latest]

Additional context
2nd issue, I guess