1062 - Duplicate entry '16777215' for key 1

insert into user_tracking (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url, page_desc, referer_url) values ('0', 'Spider: 35.168.112.145', 'ccbot/2.0 (https://commoncrawl.org/faq/)', '35.168.112.145', '1594610904', '1594610904', '/', 'test', ' -- ')

[XT SQL Error]