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 ('d1f52e1a8b9f62f8dfeb8ab1cd425ab2', -1, 1752068624, 1752068624, 'd849d8b4', 8, 0, 0)

Line : 187
File : sessions.php