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', '185daf9701deed3e02c860eb7513e9ef', '18.204.56.185', '1659972945', '1659972945', '/index.php/language/en/cat/c35_Laender.html/page/4')

[XT SQL Error]