phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8fc77342e355b0bf55e773b1563a2e17' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('8fc77342e355b0bf55e773b1563a2e17', -1, 1769518124, 1769518124, 'd849d83b', -9, 0)

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