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', 'addfbb7fb2eecc26376e4031ee0414dd', '3.236.111.234', '1710838874', '1710838874', '/index.php/cat/c40_Karten-Konfigurator.html')

[XT SQL Error]