1366 - Incorrect integer value: '' for column `hbl_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', 'qls2skrr0jfqmko1solinv4bu2', '13.58.119.156', '1746773828', '1746773828', '/product_info.php?info=p64_800512-Dengelgeraet-Sensenschaerfer-Schlagdengler.html')

[XT SQL Error]