1366 - Incorrect integer value: '' for column `ngtkeZ_web1104_2`.`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', 'g2t3n0lj2cke4c810bcul5coh2', '18.97.9.170', '1773421768', '1773421768', '/')

[XT SQL Error]