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', 'bt1i4mf96fa2871c1h3n00kvf1', '54.161.71.87', '1537797770', '1537797770', '/catalog/default.php?osCsid=sae431ddrejsp9u780nuf4a9p4')

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