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', 'vbsmpdjl1jdm9rv8e1ub41r6q7', '18.223.97.137', '1746981066', '1746981066', '/index.php/cat/c5313_Nach-ISO.html')

[XT SQL Error]