1366 - Incorrect integer value: '' for column `schablone_1`.`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', 'ddaeaac07ba06c0183d28a1cd23fe20a', '3.148.109.101', '1730250580', '1730250580', '/shop/index.php')

[XT SQL Error]