Log into mysql.

mysql -uadmin -p`cat /etc/psa/.psa.shadow`

mysql> select dom_id,certificate_id from hosting where dom_id=13;
+--------+----------------+
| dom_id | certificate_id |
+--------+----------------+
| 13 | 0 |
+--------+----------------+
1 row in set (0.00 sec)

mysql> SELECT * FROM IP_Addresses;
+----+---------------+-------------+---------------+-------+--------------------+-------------------+-------+------+--------+
| id | serviceNodeId | ip_address | mask | iface | ssl_certificate_id | default_domain_id | ftps | main | status |
+----+---------------+-------------+---------------+-------+--------------------+-------------------+-------+------+--------+
| 1 | 1 | 192.168.0.3 | 255.255.255.0 | eth0 | 2 | 0 | false | true | 0 |
+----+---------------+-------------+---------------+-------+--------------------+-------------------+-------+------+--------+
1 row in set (0.00 sec)

mysql> UPDATE IP_Addresses SET ssl_certificate_id = 0;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0

mysql> SELECT id, name FROM certificates;
+----+---------------------+
| id | name |
+----+---------------------+
| 1 | |
| 2 | default certificate |
| 3 | default certificate |
+----+---------------------+
3 rows in set (0.00 sec)

mysql> quit
Bye

Reconfigure

[root@DS29440 ~]# /usr/local/psa/admin/sbin/httpdmng --reconfigure-all

Restart Apache

[root@DS29440 ~]# service httpd restart