[otrs] still probs with sending mail

I got your answer,thanks. However, I still have problems to send mail with OTRS. The mysql table says: Warning: Supplied argument is not a valid MySQL result resource in /usr/www/htdocs/mercator/php/phpMyAdmin/lib.inc.php3 on line 334 What is wrong there??? I have NOT changed anything and it has been working fine until a couple of days ago for half a year now! Thanks, Marc