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', '0rg3veml36pp8lvs4v37ph4fg6', '54.224.89.34', '1539651882', '1539651882', '/catalog/default.php?osCsid=4pbbmoil6bihukg3i83rkls506')

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