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', 'jdaf2hi9gu4svjmq7dnb5e3vu5', '54.92.174.226', '1534540860', '1534540860', '/catalog/default.php?cPath=49_174&osCsid=ml78qido8223rl91gb78jm51a3')

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