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 ('93e0f9c2e0c7351f3d316bc48f4ea717', -1, 1768618944, 1768618944, 'd849d854', 6, 0, 0)

Line : 187
File : sessions.php