One of my legitimate users (forum moderator in fact) is suddenly locked out of Wordpress.
He gets this notice from wp_w3all.php:
I'm not sure why this has happened. I don't think I did anything.Notice: your username, IP or email is currently banned into our forum. Please contact an administrator.
What might be the cause and what should I do to unban him?
I tried updating his password, without effect.
Thanks