Free Domain Registration

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /home/news2/public_html/freedomain/db/open.php:5 Stack trace: #0 /home/news2/public_html/wp-content/themes/cake/template-domain-check.php(36): require_once() #1 /home/news2/public_html/wp-includes/template-loader.php(77): include('/home/news2/pub...') #2 /home/news2/public_html/wp-blog-header.php(1): require_once('/home/news2/pub...') #3 /home/news2/public_html/index.php(1): require('/home/news2/pub...') #4 {main} thrown in /home/news2/public_html/freedomain/db/open.php on line 5