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', '842f3ab27a92a0dd3e5e44f4a4ff3fe3', '3.12.162.179', '1713630856', '1713630856', '/shop_content.php/language/de/coID/2/content/Privatsphaere-und-Datenschutz')

[XT SQL Error]