1366 - Incorrect integer value: '' for column `usr_web74_1`.`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', 'h7gaoh1q960aovv6hepqdqpco7', '18.191.85.98', '1722088026', '1722088026', '/index.php?cat=c32_Koerbe---Taschen.html')

[XT SQL Error]