1366 - Incorrect integer value: '' for column `jugglux_jstore`.`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', 'hrtedq3vgciugfp23005mmf081', '18.204.55.168', '1597486577', '1597486577', '/shop_content.php/language/de/coID/1/product/Conditions-of-Payment')

[XT SQL Error]