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 ('d6392c6e778c35d9fab0d8abe4e3ba63', -1, 1711711761, 1711711761, '2cd267e9', -4, 0, 0)

Line : 187
File : sessions.php