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', 'd25r4k9qi87v54adoitcotkm24', '54.161.116.225', '1540214031', '1540214031', '/catalog/default.php?osCsid=v83us4qi9a92tcqp03vimpdo46')

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