1366 - Incorrect integer value: '' for column `abtecsho_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', 'ggqlkbcabigc6rv2jt5h9h1mn1', '18.220.9.72', '1746956255', '1746956255', '/product_info.php/info/p5920_-Jockel-SF-2-JM--2-l---Schauml--scher.html')

[XT SQL Error]