1366 - Incorrect integer value: '' for column `evanzo_baumi`.`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', '0049855d6f04ded74e0bc00924c90abc', '18.119.143.4', '1715125364', '1715125364', '/index.php/cat/c22_IndiCor-Banksteine.html/XTCsid/0049855d6f04ded74e0bc00924c90abc')

[XT SQL Error]