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', 'nni1b8fc1e7idi0c4mljo4pub5', '54.158.138.161', '1711720223', '1711720223', '/Stumpen-Kerzen/Stumpenkerze-128/Stumpen-Kerze-12-8-Rosa::720.html')

[XT SQL Error]