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', 'lmtn534l0f24kt1ab61t1jgc54', '54.161.71.87', '1537795502', '1537795502', '/catalog/default.php?cPath=51&osCsid=5ee9qqo6a5rqhis1njnmi5dkf0')

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