1366 - Incorrect integer value: '' for column `CP_as15`.`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', 'ol1866aaiucrcucc0jk0r21q12', '3.148.107.37', '1738998377', '1738998377', '/index.php?XTCsid=3o9rajic4fkoo3bb243kehab14&cat=c1149_Diverse-Smartphone-zubeh--r.html')

[XT SQL Error]