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', '73febc5555a75425845095effc9c7c5f', '3.144.35.148', '1714127260', '1714127260', '/product_info.php/language/en/info/p4017_Reliefkarten-Poster.html')

[XT SQL Error]