phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f4dffcbebdc635fc523d31a5a57f5406' 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 ('f4dffcbebdc635fc523d31a5a57f5406', -1, 1715736151, 1715736151, 'c0a80201', -9, 0, 0)

Line : 187
File : sessions.php