Pixelmon Mod

Hi! I started a pixelmon server for me and my friends, but any changes I do to the config(on the server, not client), especially about legendary spawning, is dismissed. What can cause this? And how do I fix it?
Thx.
Tobias.

Are you making these changes through the in-game menu? If so, that menu only affects your client settings. You'll need to edit the "pixelmon.hocon" file in the server's "config" folder with a text editor, preferably something like Notepad++. Restart the server after making changes!

I am making the changes in the pixelmon.hocon, and restarting by typing stop in the control panel, but nothing is working.

Again, which side are you editing this file on? Both the server and any connecting clients (the side people play from) will have this file, though you will need to edit the server's file specifically. If you are editing the file on the server's end, is there anything in the startup log? Go to the "logs" folder and open "latest.log", chances are the config is malformed and it's loading safe defaults. (which would print a big error during boot)