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', '9n7t1192a9j14ifvvq32eg5396', '3.141.100.120', '1713283267', '1713283267', '/Stumpen-Kerzen/Stumpenkerze-128/Stumpen-Kerze-12-8-Dunkelblau::719.html')

[XT SQL Error]