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', 'f31kl9na3h8prc4b6fq590tvj3', '18.191.202.45', '1714056180', '1714056180', '/Glasuntersetzer/Serie-Apollo/Glasteller-Apollo-120::268.html')

[XT SQL Error]