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', '3900c503e75717c165f61714e9914e17', '18.204.56.185', '1659974733', '1659974733', '/index.php/language/en/cat/c35_Laender.html/page/5')

[XT SQL Error]