Error!

MySQL Error: 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 taxonomy.magazine_id=6 and taxonomy.child_of IN(66621)' at line 1
SQL Statement: SELECT user_taxonomy.taxonomy_id FROM user_taxonomy JOIN taxonomy on taxonomy.id=user_taxonomy.taxonomy_id WHERE user_taxonomy.user_id = AND taxonomy.magazine_id=6 and taxonomy.child_of IN(66621)