Could not insert search results

DEBUG MODE

SQL Error : 1062 Duplicate entry '25836858' for key 'PRIMARY'

INSERT INTO xx_search_results (search_id, session_id, search_array) VALUES(25836858, '699a792411162af12ea26c53ef960566', 'a:7:{s:14:"search_results";s:621:"12130, 12141, 12155, 12848, 12852, 13010, 13011, 13047, 13189, 13191, 13283, 13445, 13447, 14796, 18465, 18569, 21175, 106874, 107594, 108408, 108672, 109566, 153189, 194578, 210899, 254228, 254236, 254237, 254243, 254252, 279203, 279207, 321368, 321533, 321560, 321570, 321577, 321580, 321589, 321593, 321767, 321771, 321774, 321831, 322396, 322406, 322416, 322421, 336524, 336525, 336529, 336533, 336534, 336540, 336543, 336559, 336560, 336564, 336568, 342009, 342014, 342016, 342018, 343924, 343940, 345252, 345281, 345283, 345288, 345975, 346088, 346682, 354886, 357329, 515256, 562892, 585294, 774970, 774974, 776161";s:17:"total_match_count";i:80;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 : 703
File : search.php