Script Execution Error

The following error was just encountered:

DBI connect('host=localhost;database=kmpublis_wmwebsite','kmpublis_CCP',...) failed: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) at /home/kmpublis/public_html/moreau/cgi-bin/CCP51/library/common/database.pl line 233