rsyslog 队列报错

rsyslog v8.16 中启用队列，启动时总是报错;

rsyslogd-2026: error starting up disk queue, using pure in-memory mode  [v8.16.0 try http://www.rsyslog.com/e/2026 ]

http://www.rsyslog.com/e/2026这个地址也打不开，有人了解吗？