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 ('57b424a93e167f02836a164b5e0d2373', -1, 1711711865, 1711711865, '12d4f2cb', -1, 0, 0)

Line : 187
File : sessions.php