1366 - Incorrect integer value: '' for column `jugglux_jstore`.`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', 'pg5un79kq39pgssnj4usqg5gt7', '18.208.126.130', '1594527931', '1594527931', '/index.php/cat/c353_Feuerstaebe.html')

[XT SQL Error]