1366 - Incorrect integer value: '' for column `magickland`.`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', '4n5emg6stio5ia3hnjdq7nnb36', '3.145.169.85', '1718731242', '1718731242', '/index.php/cat/templates/xtc5/img/templates/xtc5/img/logo.png')

[XT SQL Error]