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', 'tlrnvtnjsv6hst109ijl2sb5q7', '54.198.195.11', '1534324679', '1534324679', '/catalog/password_forgotten.php?osCsid=hdu5vkilg3o0qa1treq66p3ho7')

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