I have tried several time to edit the server settings with the 'Modify Server Config' panel. I open it, change the settings that I need and then click 'Save Configuration' with 'Stop server, save form values, save to .ini files, start server' selected. Every time the serverSettings.ini resets to its old settings.
This is a problem because it has the allow region settings as false for all of them. So I can't even log into my server.