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', 'ek2a8ijhv3ig88pj2k8cbkv8b6', '34.231.109.238', '1594116117', '1594116117', '/index.php/cat/c335_Wooden-stick.html')

[XT SQL Error]