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', 'f11bl79nhu4seaimupgp9u2ch1', '54.224.11.137', '1534860775', '1534860775', '/catalog/default.php?cPath=50_138&osCsid=rbn8hjnui63ulh192dp2cdns04')

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