1062 - Duplicate entry '16777215' for key 'PRIMARY'

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: 3.215.182.81', 'ccbot/2.0 (https://commoncrawl.org/faq/)', '3.215.182.81', '1586068019', '1586068019', '/index.php/cat/c213_sold-Specimens.html', 'test', ' -- ')

[XT SQL Error]