phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8439a4aead727495b805f1e3439b5c9d' 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 ('8439a4aead727495b805f1e3439b5c9d', -1, 1714780016, 1714780016, '0391ba06', -8, 0, 0)

Line : 187
File : sessions.php