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', '83vjma2g1fs7qlmg14ah0c7ua7', '54.92.190.11', '1537325188', '1537325188', '/catalog/product_info.php?products_id=625&osCsid=vlhs9ledfqc6ohlu5ir0r9p0a2')

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