Flickr-Gallery problem!!! (italian user)

hello,
I use this plugin but he does not work.
you can help me?
here the error message:

An error occurred. Here is the response from Flickr:

<?xml version=”1.0″ encoding=”utf-8″ ?>
<rsp stat=”fail”>
<err code=”1″ msg=”User not found” />
</rsp>

And here is the response after passing through the parser:

array (
‘rsp’ =>
array (
‘err’ =>
array (
‘code’ => ‘1’,
‘msg’ => ‘User not found’,
),
),
)
Excuse for my english but i’m italian.

my version is 1.5.2 wp

tks

alex