1366 - Incorrect integer value: '' for column `evanzo_baumi`.`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', 'd80cab4bb721e41c6a45b27103083d7', '18.117.254.202', '1736914674', '1736914674', '/index.php/cat/c1_Natur--Wasserabziehsteine.html/XTCsid/d80cab4bb721e41c6a45b27103083d7')

[XT SQL Error]