phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1b14850954cf54327e3f542e184cd334' 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 ('1b14850954cf54327e3f542e184cd334', -1, 1398241249, 1398241249, '32132105', -1, 0, 0)

Line : 187
File : sessions.php