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', 'c62umfc83ugs5ggof93pi3tfr6', '13.58.36.197', '1746972720', '1746972720', '/product_info.php/info/p5313_f--r-2-kg-Feuerl--scher--ABC--ISO-Symbol-.html')

[XT SQL Error]