1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', '5f2a983f3685f93b32859cd62d7e2886', '18.218.236.85', '1722087633', '1722087633', '/index.php?refID=1')

[XT SQL Error]