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', 'm76410mjdskfc456fum7b33hk7', '18.216.129.37', '1746952844', '1746952844', '/product_info.php/info/p7045_Fahrbarer-Feuerl--scher.html')

[XT SQL Error]