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', 'lslcu0o26sdonasnm9qol61n31', '18.223.172.149', '1746775955', '1746775955', '/product_info.php?info=p96_Kerbl--Agrarbedarf-.html')

[XT SQL Error]