phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '31ada17a8bedbba3bf25437bade86f4b' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('31ada17a8bedbba3bf25437bade86f4b', -1, 1772246808, 1772246808, 'd849d834', -9, 0)

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