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', '367q95ppgmn92nntv3dd1u4jl3', '18.116.170.100', '1746780350', '1746780350', '/index.php?cat=c21_Obstverarbeitung.html')

[XT SQL Error]