1064 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 '' at line 12
in:
[select count(distinct p.products_id) as total FROM (products p LEFT JOIN manufacturers m USING(manufacturers_id), products_description pd, categories c, products_to_categories p2c ) LEFT JOIN meta_tags_products_description mtpd ON mtpd.products_id= p2c.products_id AND mtpd.language_id = 1 WHERE (p.products_status = 1 AND p.products_id = pd.products_id AND pd.language_id = 1 AND p.products_id = p2c.products_id AND p2c.categories_id = c.categories_id AND p2c.products_id = p.products_id AND p2c.products_id = pd.products_id AND (p2c.categories_id = 31 OR p2c.categories_id in ( 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50))]