mySQL problem

New 1.7.14 install with several of the popular plugins Enabled. All was OK but I am now getting the below message at the bottom of each screen.  Should I delete the mySQL database and install a new one and any idea what could have caused this to happen? 

Fatal error: Uncaught exception 'DatabaseException' with message 'You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND md.value_id = 11) AND ((e.type = 'object' AND e.subtype IN (6))) AND (' at line 5 QUERY: SELECT DISTINCT e.* FROM elgg_entities e WHERE NOT EXISTS ( SELECT 1 FROM elgg_metadata md WHERE md.entity_guid = e.guid AND md.name_id = AND md.value_id = 11) AND ((e.type = 'object' AND e.subtype IN (6))) AND (e.site_guid IN (1)) AND (e.time_created <= 1323352389) AND ( (1 = 1) and e.enabled='yes') ORDER BY e.time_created desc' in /home/sites/ Stack trace: #0 /home/sites/ execute_query('SELECT DISTINCT...', Resource id #56) #1 /home/sites/ get_data('SELECT DISTINCT...', 'entity_row_to_e...') #2 /home/sites/ in /home/sites/ on line 194