“Forum Error - View New Posts”

This AM, every time I used the "view new posts" this error msg comes up:

Could not insert search results

DEBUG MODE

SQL Error : 1062 Duplicate entry '1135108639' for key 1

INSERT INTO phpbb_search_results (search_id, session_id, search_time, search_array) VALUES(1135108639, '1c95a9a9d64882e57d522df9bc30ca26', 1274873357, 'a:7:{s:14:"search_results";s:15:"970, 2295, 2312";s:17:"total_match_count";i:3;s:12:"split_search";N;s:7:"sort_by";i:0;s:8:"sort_dir";s:4:"DESC";s:12:"show_results";s:6:"topics";s:12:"return_chars";i:200;}')

Line : 707

File : search.php