1366 - Incorrect integer value: '' for column `db160153`.`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', 'o2hdt6nvmjeves025350omm8d7', '13.58.252.8', '1713549536', '1713549536', '/Kerze-Windmuehle/Kerze-Windmuehle-Hellblau::598.html')

[XT SQL Error]