1366 - Incorrect integer value: '' for column `db162720`.`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', '4fsn77cs8vlfkjk4uau4ffmn93', '18.118.9.146', '1714181964', '1714181964', '/shop_content.php/coID/2/content/Datenschutzerklaerung')

[XT SQL Error]