Database Error!

Module: mysql3
Error (#2002 - ): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
Fatal error: Unsupported operand types in /home/14072/dwrobertson/www.dwrobertson-photography.com/public_html/guestbook/resources/functions.php(23) : eval()'d code on line 2