1366 - Incorrect integer value: '' for column `ngtkeZ_web1104_2`.`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', 'aln5top46dgc700j3hq9np5qj3', '18.97.9.170', '1783702724', '1783702724', '/')

[XT SQL Error]