phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f14eedd05b7f20119e64e2dd649ed6d6' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f14eedd05b7f20119e64e2dd649ed6d6', -1, 1412252810, 1412252810, '365380c0', 3, 0, 0)

Line : 187
File : sessions.php