[Marco van Herwaarden]

The database you are accessing, is this also the database for your forum? If yes, try to use the standard vB functions for accessing the database.

PHP Code:

$connection = mysql_connect(**************) or die ("Cannot connect to server."); 
$db = mysql_select_db("trainhealthy", $connection) or die ("Could not select database."); 


Here you are probably destroying the vB database connection, resulting in the error you are getting.