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', 'sc5uc5frb47nfnqi5rkf26e416', '18.222.225.252', '1739000827', '1739000827', '/index.php?XTCsid=phknodh461cpg07ie5v3k6t3b7&cat=c1301_Li-Polymer-Akkus.html')

[XT SQL Error]