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', 'pjqic11bj87brnk5o35cu5ve35', '54.162.171.242', '1534489222', '1534489222', '/catalog/product_info.php?products_id=819&osCsid=fbl9ifvmv7vtkvvcr8ei3doj81')

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