phpBB : Erro Crítico

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO f_activesessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('653a3f83636a022f58477e840f0a530c', -1, 1762140788, 1762140788, 'd849d869', -9, 0, 0)

Line : 187
File : sessions.php