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 ('1e64c5d6e3c9a5fe267664be5f8a5f5f', -1, 1769228122, 1769228122, 'd849d83e', 6, 0, 0)

Line : 187
File : sessions.php