phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'cf566d29d7dc8cbd4d22d50a751cc539' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('cf566d29d7dc8cbd4d22d50a751cc539', -1, 1766416881, 1766416881, 'd849d8b8', 2, 0, 0)

Line : 187
File : sessions.php