What could be the cause of this message?
Fatal error: Call to a member function on a non-object in /lib/datalib.php on line 250
(this line is the following: $rs = $db->Execute("$sql"); )
If I only use Moodle, nothing's wrong, but as soon as I use another database application in my Web pages, the above message appears when accessing a Moodle course on my page.
Any of you???