phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '835fac4b44d0a8aa7161726aab8518d3' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('835fac4b44d0a8aa7161726aab8518d3', -1, 1771678954, 1771678954, 'd849d892', -9, 0)

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