1366 - Incorrect integer value: '' for column `shop_db3`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '0a4730d5eefca449ab0753993c791c55', '3.145.47.253', '1713853349', '1713853349', '/product_info.php?info=p321_Easy-Tunes--Rhythm-Leadsheets-.html&XTCsid=4a502cf522b059da09cfca377185d405')

[XT SQL Error]