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', 'ee66vv60q5l02e2u4fo5dpb912', '3.134.80.24', '1739000962', '1739000962', '/index.php?XTCsid=f57tq837n8rooemhginpeliql7&cat=c109_Stabo.html')

[XT SQL Error]