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', 'ed7fe9f71000685fc3107333ed1b92b5', '3.93.59.171', '1711675173', '1711675173', '/index.php/language/en/cat/c19_Reliefkarten-Digital.html')

[XT SQL Error]