Warning: session_start(): Cannot start session when headers already sent in /home/hvisionc/public_html/insight2b/index.php on line 3

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /home/hvisionc/public_html/insight2b/include/database.php:23 Stack trace: #0 /home/hvisionc/public_html/insight2b/include/database.php(87): db_connect() #1 /home/hvisionc/public_html/insight2b/index.php(5): include('/home/hvisionc/...') #2 {main} thrown in /home/hvisionc/public_html/insight2b/include/database.php on line 23