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', '1ohsk2c79um6gmouve322j3d01', '54.166.203.17', '1537815582', '1537815582', '/catalog/user_agreement.php?osCsid=26n06qlijnbq7rd26l56np1f53')

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