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', 't4jovb5canb731s5mqqne1ov71', '54.166.203.17', '1537346072', '1537346072', '/catalog/product_info.php?products_id=683&osCsid=2c8u6dbq9ukt0qcn0rae1s2of6')

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