1366 - Incorrect integer value: '' for column `creatihu_shop`.`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', 'b477927a390df96512c08a10faf1a779', '100.28.0.143', '1721512154', '1721512154', '/')

[XT SQL Error]