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', '61986a4c66129676b40be6f15563c90f', '216.73.216.116', '1752278239', '1752278239', '/index.php/cat/c37_Welt.html')

[XT SQL Error]