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', 'm0felpiap2b6vn20hu4m7buo87', '54.224.56.126', '1539884198', '1539884198', '/catalog/login.php?osCsid=almijjqhq4lj5r19iq48tir130')

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