Warning: mysql_connect() [function.mysql-connect]: Can't connect to local MySQL server through socket '/tmp/mysql5.sock' (2) in /home/oac4/webapps/admin_toolbox/media/3rd_party_apps/csv_importer/includes/php/classes/_class.mysql.php on line 21
The script is unable to connect to MySQL.  Please check MySQL is running and the settings in "config.php" are correct.  The message below gives more information on the error:

---

Can't connect to local MySQL server through socket '/tmp/mysql5.sock' (2)