1366 - Incorrect integer value: '' for column `dogsdream`.`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', '6986f356bea24c78982dad3e1bd76056', '3.14.134.18', '1732270036', '1732270036', '/shop/product_info.php/info/p10_BIO---Moehrenkuchen-Grosspackung.html')

[XT SQL Error]