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', '06aft0raoh3vqvcd6c2qodv8g1', '54.198.142.121', '1537925189', '1537925189', '/catalog/privacy.php?osCsid=ldmmitulveqlrrfac9gbbh8241')

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