Courses and course formats

I am having a similar problems with flex page.

I have an oracle database and getting nasty errors;

see below;

ORA-00936: missing expression

SELECT c.instanceid, c.instanceid, u.firstname, u.lastname FROM m_role_assignments ra, m_context c, m_user u WHERE ra.userid = 45504 AND ra.contextid = c.id AND c.instanceid = u.id AND c.contextlevel = .CONTEXT_USER ORDER BY u.lastname ASC;