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', '2bl4pil5b121lrmvjicgon9ke3', '54.80.102.170', '1534597315', '1534597315', '/catalog/default.php?cPath=49_182&osCsid=82gbmmuj30sntm6ebdrfub29f5')

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