phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c43f4cd621680d7e0e9c3cceca6d8f8d' 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 ('c43f4cd621680d7e0e9c3cceca6d8f8d', -1, 1769506583, 1769506583, '0aff0001', 78, 0, 0)

Line : 199
File : sessions.php