1366 - Incorrect integer value: '' for column `argus_xtc`.`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', 'mot7dai93jo8eeubg0psk1q5g2', '18.215.161.19', '1560713831', '1560713831', '/shop/login.php')

[XT SQL Error]