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 ('896d6f2d8628da4a53038a29cb0f0151', -1, 1768120124, 1768120124, 'd849d802', 1, 0, 0)

Line : 187
File : sessions.php