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 ('1319aa56d7253b9d88c5a7b50d1b2726', -1, 1766325038, 1766325038, 'd849d817', 8, 0, 0)

Line : 187
File : sessions.php