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', 'bv5peju2vnooj1dpb1m7042a56', '18.97.9.170', '1739815785', '1739815785', '/index.php/XTCsid/bv5peju2vnooj1dpb1m7042a56')

[XT SQL Error]