When deleting Mail Domain's I get the following error:
[Tue Apr 30 09:50:36 2013] [warn] [client XXX.XXX.XXX.XXX] mod_fcgid: stderr: PHP Fatal error: Call to a member function fetch_assoc() on a non-object in /usr/local/ispconfig/interface/lib/classes/db_mysql.inc.php on line 181, referer: https://xxxxxxxx.net:8080/index.php#
[notice] Apache/2.2.17 (Ubuntu) DAV/2 mod_fcgid/2.3.6 PHP/5.3.5-1ubuntu7.11 with Suhosin-Patch mod_ssl/2.2.17 OpenSSL/0.9.8o configured -- resuming normal operations
I am able to delete records from DNS/Sites with out an issue. It looks to only be an issue with this table (dbispconfig.mail_domain) command line MYSQL works fine.
Thanks for looking!