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 ('e5087c431562f4243f52cd53f804929f', -1, 1711710368, 1711710368, '36597ff9', -7, 0, 0)

Line : 187
File : sessions.php