Could not insert search results

DEBUG MODE

SQL Error : 1062 Duplicate entry '165812493' for key 'PRIMARY'

INSERT INTO phpbb_search_results (search_id, session_id, search_time, search_array) VALUES(165812493, '3ea5113188f1b8076d8a6ef5b81923cc', 1752547748, 'a:7:{s:14:"search_results";s:38:"431067, 434917, 435046, 585039, 585044";s:17:"total_match_count";i:5;s:12:"split_search";N;s:7:"sort_by";i:0;s:8:"sort_dir";s:4:"DESC";s:12:"show_results";s:5:"posts";s:12:"return_chars";i:200;}')

Line : 781
File : search.php