There is a problem with reading table dmNavigation on MySQL case sensitive installations. Basically the ntmorphans query is written in lowercase for dmNavigation which casued the error on my system. Fix code below.

<!--- orphan nodes and exist in dmnavigation --->
<cfquery datasource="#application.dsn#" name="ntmorphans">
SELECT ntm.parentid, n.objectid, n.label, n.status, n.lnavidalias, n.datetimelastupdated
FROM nested_tree_objects ntm, dmNavigation n
WHERE ntm.objectid = n.objectid
AND ntm.parentid not in
(select objectid from nested_tree_objects)
AND NOT (ntm.parentid is NULL OR ntm.parentid = '') -- ie. not ROOT
</cfquery>