Invalid signature for profile public key — How to Fix?

Problem Description

If you encounter this error when trying to connect to a server:

Invalid signature for profile public key.
Try restarting your game.
agj$a: Missing profile public key.
This server requires secure profiles.

This is related to secure profile verification in newer Minecraft versions. Here’s the solution!

Solution

You need to change a setting in the server configuration file server.properties.

Step-by-Step Instructions

1. Open the control panel at panel.qwer-host.xyz and select your server.
2. Go to the “Files” tab and find the server.properties file.
3. Open the file for editing.
4. Find the line:

   enforce-secure-profile=true
5. Change the value to false:

   enforce-secure-profile=false
6. Save the file.
7. Restart the server.

After the restart, try connecting again — the error should be gone.