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', 'retuqdf3i67gh6r8m6am6n1641', '54.196.98.96', '1534742415', '1534742415', '/catalog/default.php?cPath=49&osCsid=cjmsn8hk8ob7eaeun75d4jusi6')

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