INSERT INTO cart (tovar_name, col, cost, ses_id, date) VALUES ("", 1, , "a50b768d4c8871d7faa00d32a27d398b", 1518991950)
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 ' "a50b768d4c8871d7faa00d32a27d398b", 1518991950)' at line 1