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', '5f8e041802bc826ba91b686ed1b52c84', '18.204.56.185', '1659979320', '1659979320', '/index.php/cat/c40_Map-Konfigurator.html')

[XT SQL Error]