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', 'bm45vstga2stbfj0g7013vldt1', '54.156.51.193', '1537570901', '1537570901', '/catalog/default.php?cPath=47_240&osCsid=tjv9c32tc855ulmiqffiq7a224')

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