WordPress database error: [Not unique table/alias: 'wp_term_relationships']
SELECT SQL_CALC_FOUND_ROWS wp_posts.* FROM wp_posts INNER JOIN wp_term_relationships ON (wp_posts.ID = wp_term_relationships.object_id) inner join wp_term_relationships on (wp_posts.id = wp_term_relationships.object_id) inner join wp_term_taxonomy on (wp_term_relationships.term_taxonomy_id = wp_term_taxonomy.term_taxonomy_id) WHERE 1=1 AND ( wp_term_relationships.term_taxonomy_id IN (9705) ) AND wp_posts.post_type IN ('post', 'page', 'attachment') AND (wp_posts.post_status = 'publish') AND wp_term_taxonomy.taxonomy = 'certificate' AND wp_term_taxonomy.term_id=9688 GROUP BY wp_posts.ID ORDER BY wp_posts.post_date DESC LIMIT 0, 21