1366 - Incorrect integer value: '' for column `abtecsho_shop`.`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', 'hrhlpok28bb0iof835k3e4a5i7', '18.97.9.170', '1739817667', '1739817667', '/shop_content.php/coID/2/content/Datenschutzerkl--rung')

[XT SQL Error]