Centos Web Panel mysqld is stopped

I get an error like this.

Warning: mysql_connect(): No such file or directory in /usr/local/cwpsrv/htdocs/admin/index.php(1) : eval()'d code(1) : eval()'d code on line 2
mysqld dead but pid file exists

Trying to start mysql server, please wait!
Try to restart CentOS Web Panel with command: service cwpsrv restart

**Check your MySQL root password in: /usr/local/cwpsrv/htdocs/resources/admin/include/db_conn.php and /root/.my.cnf

Could not connect: No such file or directory

How can I fix.

Cwp restart ;

Stopping cwpsrvd: [ok]
Starting cwpsrvd: Could Not Reliaby determine the server's fully qualified domain name, using 127.0..1 for servername