phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '686731ce89d10e9cdc37bfc6f4795682' 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 ('686731ce89d10e9cdc37bfc6f4795682', -1, 1738202107, 1738202107, '0316466f', 1, 0, 0)

Line : 187
File : sessions.php