phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f9f98df37471c6c6dd2aab65342df797' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('f9f98df37471c6c6dd2aab65342df797', -1, 1744327362, 1744327362, '0311a674', -9, 0)

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