What am I overlooking???

I've installed CGI::FileUpload to see where that gets me. Here's my current code:

sub customerupload{
        my $self = shift;
        my $q = $self->query;
        my @data;
        my $error = "";
        my $filename = $q->param('uploadfile');
        my $file;
        if($filename) {
                my $filehandle = new CGI::FileUpload();
                $file = $filehandle->upload('query'=>$q);
                my $data;
                while(<$file>) {
                        $data .= $_;
                }
                if($data) {
                        $error = 'Successfull upload';
                }
                else {
                        $error .= $CGI::VERSION."Nothing read<br>$file
+name<br>$file<br>"."<br>$!<br>";
                }
        }
        else{$error .= $CGI::VERSION."file not uploaded <br>$filename<
+br>$file<br>"."<br>$!<br>";}
        return $self->template({ file => 'customers.html', vars => {er
+ror           => $error, }});
}
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my $fhin=CGI::upload('uploadfile')||CORE::die "cannot convert [$filena
+me] into filehandle: $!";
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don't know if I'm getting anywhere or not...

I finally figured it out. I had an extra unclosed form tag in my HTML that was throwing it off.