Check if you are connected to the Authserver (normally 4501) or to the Gameserver (normally 4515).
The commands will only work with the gameserver and not with the authserver.
In the gameserver you have to add the "#" instead of "/run"...the syntax of the commands is the same.
#run('test') and #run("test") are working fine for me. Sometimes if you correct your command using backspace or something else the command won't work. Try a little bit around and it will work
You can check the gameserver! If the command is wrong a error message will show up.