phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '2faa696f65b388f4e68317021b09552c' 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 ('2faa696f65b388f4e68317021b09552c', -1, 1784298963, 1784298963, 'd849d8f9', 6, 0, 0)

Line : 187
File : sessions.php