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', '5b039ecc715fad2ec67607caecbee48e', '54.227.136.157', '1710843497', '1710843497', '/index.php/cat/c35_Laender.html')

[XT SQL Error]