I couldn't start gnopernicus, help!

[=?X-UNKNOWN?B?sKqlzan0?=]

hi:

I'm running gnopernicus 0.9.1 with brltty 3.5pre2 and output the following
messages. What should I do?

BrlAPI detected a 40x1 display

** BRAILLE initialization succeded for BRLTTY device on port 1.
   To see something you must have a Braille device connected to your
computer.
   To change one or more settings use gnopernicus UI.
/usr/local/share/gnopernicus/presentation/:1: parser error : Document is
empty

^
/usr/local/share/gnopernicus/presentation/:1: parser error : Start tag
expected, '<' not found

^

gnopernicus-ERROR **: File "/usr/local/share/gnopernicus/presentation/"
cannot be parsed.

aborting...