1366 - Incorrect integer value: '' for column `CP_as15`.`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', '1ssi8s0olu47kf735b6ga18dc5', '3.144.26.77', '1738997098', '1738997098', '/index.php?XTCsid=mkl8qqqorbnshicuaf45rnrdo2&cat=c1340_Solar---Zubeh--r.html')

[XT SQL Error]