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', '73cbe2b6ef29bb1d81d9837c88ad4e6d', '3.141.152.173', '1714104967', '1714104967', '/product_info.php/language/de/info/p3099_Alaska-Reliefkarte.html')

[XT SQL Error]