1366 - Incorrect integer value: '' for column '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', 'e35nn68fu15kdsna61i8l6crq5', '54.166.233.99', '1529313564', '1529313564', '/')

[XT SQL Error]