SQL Error when viewing weblink

You have an error in your SQL syntax near '' at line 1 query: SELECT COUNT(*) AS c FROM term_node t, node n WHERE t.nid = n.nid AND tid IN (2,4,5) AND n.type = 'weblink' AND n.status = 1 AND n.moderate = 0 AND in /.../includes/database.mysql.inc on line 66.

The error occurs when opening http://www.domain.com/weblink