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', '0alr1uin1qorm7kff2igdr8uo7', '18.97.14.82', '1745407110', '1745407110', '/index.php/cat/c124_Textschilder.html')

[XT SQL Error]