phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '47431ececfd483e1b8a08847dde270c2' 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 ('47431ececfd483e1b8a08847dde270c2', -1, 1722046114, 1722046114, '12da5499', -12, 0, 0)

Line : 187
File : sessions.php