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', 'qnnm73qvck3p2lj4b5qlev3fm3', '54.198.212.30', '1539599847', '1539599847', '/catalog/default.php?cPath=51&osCsid=f7sqvf13a0ef4untpn2vb5h2a1')

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