error code: 525

<br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function mysql_connect() in /home/int3gr4d4/public_html/sistema/includes/config.php:34
Stack trace:
#0 /home/int3gr4d4/public_html/antigo/parceiros.php(2): include_once()
#1 {main}
  thrown in <b>/home/int3gr4d4/public_html/sistema/includes/config.php</b> on line <b>34</b><br />