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', '19c3d2538a15850b73d68666bb97dbf0', '3.15.218.254', '1714176774', '1714176774', '/index.php/language/de/cat/c30_Laender.html/page/6')

[XT SQL Error]