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 ('770bd8f6de3d9e69fd296ec9eb2ab780', -1, 1762165618, 1762165618, 'd849d885', -9, 0, 0)

Line : 187
File : sessions.php