Deprecated: Assigning the return value of new by reference is deprecated in /usr/share/moodle/lib/adodb/adodb.inc.php on line 921

Deprecated: Assigning the return value of new by reference is deprecated in /usr/share/moodle/lib/adodb/adodb.inc.php on line 1996

Deprecated: Assigning the return value of new by reference is deprecated in /usr/share/moodle/lib/adodb/adodb.inc.php on line 2068

Error: Database connection failed.

It is possible that the database is overloaded or otherwise not running properly.

The site administrator should also check that the database details have been correctly specified in config.php