1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', '4ac6d021fa0cab17c4f63bbbff408cb2', '3.235.65.220', '1664484197', '1664484197', '/index.php/cat/c37_Welt.html')

[XT SQL Error]