phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '40470a0655b7a2111594fa92049e8cb2' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('40470a0655b7a2111594fa92049e8cb2', -1, 1771426846, 1771426846, 'd849d87b', -2, 0)

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