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', 'omcva66vf9b969re6t44sgt3t3', '54.161.116.225', '1539803784', '1539803784', '/catalog/user_agreement.php?osCsid=1fl7aeo482l0scbjv03kvb0il1')

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