phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '14ff10d9483bc71c3a5d2400f63025ec' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('14ff10d9483bc71c3a5d2400f63025ec', -1, 1228161263, 1228161263, '26673f3b', 441, 0, 0)

Line : 193
File : sessions.php