I'm using webmin installed on Ubuntu server, and it was working perfectly, but today I have shutdown the server to make image backup, after running the server I'm not able to start MySQL from webmin, and I have the following errors appears in my website :

Warning: mysql_query(): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) in /var/www/libs/MySql.php on line 120 Warning: mysql_query(): A link to the server could not be established in /var/www/libs/MySql.php on line 120

Please, if anyone can help me solving this error