1062 - Duplicate entry '0' for key 'customer_id'

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('0', 'Guest', '6r2vveheb0eehnobt193elhn81', '18.117.148.39', '1715788483', '1715788483', '/store/product_info.php/products_id/144?osCsid=a79k13iro78nus2dkbos3on284')

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