you don't type the commands in the console, you type them with the in-game chat. I also get the 5e and 36 error messages but they don't have any negative affect on connecting / playing in the sandbox. Everything works regardless of those errors.
A few questions:
any way of getting addons enabled / run code? I know there was a way of enabling addons during the MoP beta before they where properly enabled (MoP beta - Enabling addons)by blizz.
Noclip?