Some of the panel actions like kicking, banning or muting a player, and executing commands require RCON to be enabled on your server and set up on the panel.
1. Head over to your server and open the `/game/csgo/cfg/server.cfg` file, and add the following line:
$ rcon_password "your_rcon_password"
Head over to the Admin Panel -> Panel Settings -> Servers and set the RCON Password there.
The panel will then try to connect to your servers RCON and check if the password is correct.