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 ('cd84c5f80e492f1648e47d558b207daa', -1, 1753512796, 1753512796, 'd849d8ff', 1, 0, 0)

Line : 187
File : sessions.php