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', 'c10ljdqruq15jdlico9l9mlro5', '3.137.192.3', '1713888591', '1713888591', '/Stumpen-Kerzen/Stumpenkerze-128/Stumpen-Kerze-12-8-Weinrot::721.html')

[XT SQL Error]