phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4fd3f155ee1c18ebe99ee2376d769103' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4fd3f155ee1c18ebe99ee2376d769103', -1, 1757851512, 1757851512, 'd849d809', -9, 0, 0)

Line : 187
File : sessions.php