1366 - Incorrect integer value: '' for column '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', '4it2d8nl3d11i786qkiim8icg3', '18.97.14.83', '1765230327', '1765230327', '/xtshop/product_info.php?info=p1038_.html')

[XT SQL Error]