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', 'l74fevinohiodmu27hdormsjg4', '54.225.26.44', '1540272277', '1540272277', '/catalog/shipping.php?osCsid=u7dehl86khn12lsj9u2j01tm92')

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