phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd9f7f74253b1779714d8928754b460cf' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('d9f7f74253b1779714d8928754b460cf', -1, 1754946919, 1754946919, 'd849d86b', -9, 0)

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