Script Execution Error

The following error was just encountered:

DBI connect('host=localhost;database=pondbidd_ccp','pondbidd_scripts',...) failed: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) at /var/www/vhosts/pondbidder.com/cgi-bin/cart/library/common/database.pl line 232