1366 - Incorrect integer value: '' for column `wvf_soft_`.`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', 'pp2l42fjlrpvok5jl1tdpo83d3', '3.235.120.150', '1627953136', '1627953136', '/')

[XT SQL Error]