ERROR:  invalid input syntax for type integer: ""
LINE 1: ...egory WHERE site_id = '6' AND active = 1 AND id = '' LIMIT 1
                                                             ^

query(): SELECT * FROM p_category WHERE site_id = '6' AND active = 1 AND id = '' LIMIT 1

BACKTRACE:

File: /home/res/libs/class.pgDB.php [LINE 344]
Call: pgDB->backtrace()

File: /home/res/libs/class.pgDB.php [LINE 56]
Call: pgDB->error(Resource(#1)(pgsql link), Object(Exception))

File: /home/www/szafsy.com/products.php [LINE 22]
Call: pgDB->query("SELECT * FROM p_category WHERE site_id = '6' AND active = 1 AND ...")