phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1' for key 2

INSERT INTO nuke_bbsessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d6c0923f2076901b9cbd07f25fc80a90', '1', '1327785578', '1327785578', '266bb3d4', '1', '0', '0')

Line : 220
File : sessions.php