phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9955d4e5f1aa983d0c1d8c6f2b1ac2ad' 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 ('9955d4e5f1aa983d0c1d8c6f2b1ac2ad', -1, 1714972000, 1714972000, 'c0a80201', 2, 0, 0)

Line : 187
File : sessions.php