1366 - Incorrect integer value: '' for column `db160153`.`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', 'a9i992n8ife7otmg9mdelqhh94', '18.219.22.169', '1713590356', '1713590356', '/Kundeninformationen:_:1.html')

[XT SQL Error]