1366 - Incorrect integer value: '' for column `hbl_shop`.`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', 'gpskd7j4skd13kdpmo39nf8ro0', '18.116.62.169', '1746791369', '1746791369', '/index.php?cat=c20_Wer-wir-sind.html')

[XT SQL Error]