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 ('b28cfc28028bac40983c79078c2c4870', -1, 1758165513, 1758165513, 'd849d828', 3, 0, 0)

Line : 187
File : sessions.php