phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ff6adce00c3a9f1793818dcd17c90b4c' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('ff6adce00c3a9f1793818dcd17c90b4c', -1, 1766897134, 1766897134, 'd849d893', -2, 0)

Line : 180
File : /www/includes/sessions.php