1366 - Incorrect integer value: '' for column `abtecsho_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', '9haqctth6o5q5e52004nc86de7', '18.97.9.174', '1743163592', '1743163592', '/')

[XT SQL Error]