phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f9f9ce79fc9ba6dc8d8877c2e718efe4' 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 ('f9f9ce79fc9ba6dc8d8877c2e718efe4', -1, 1715765637, 1715765637, '1277a2cc', 9, 0, 0)

Line : 187
File : sessions.php