phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6c0a0527fb9fd80aae8015e2b8b4bdc2' 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 ('6c0a0527fb9fd80aae8015e2b8b4bdc2', -1, 1228445382, 1228445382, '26673f3b', -51, 0, 0)

Line : 193
File : sessions.php