[問題] 一直出現 500 internal server error

[aviatear (在梅邊)]

同一個程式 為什麼執行這個網頁(http://phobius.binf.ku.dk/index.html) 就成功
但是 執行這各網頁(http://psort.ims.u-tokyo.ac.jp/form2.html) 卻一直出現 500 internal server error??

執行的query(keywords)都是:
>:144448 MLRNNKTIIIKYFLNLINGAFLVLGLLFMGFGAWLLLDRNNFLTAFDENNHFIVPISQILIGMGSSTVLFCLLGYIGIHNEIRWLLIVYAVLITWTFAVQVVLSAFIITKKEEVQQLWHDKIDFVISEYGSKDKPEDITKWTILNALQKTLQCCGQHNYTDWIKNKNKENSGQVPCSCTKSTLRKWFCDEPLNATYLEGCENKISAWYNVNVLTLIGINFGLLTSEVFQVSLTVCFFKNIKNIIHAEM

use LWP::UserAgent;
use HTTP::Request;
use HTTP::Response;

my $ua = new LWP::UserAgent;
$ua->agent("Mozilla/5.0");

my @urls_titles = (), @urls = (),;
my $keywords = "";





print "Enter the keywords, please:\n";
chomp($keywords = <STDIN>);



###################使用POST方式抓search result的urls#################
my $response
= $ua->post('http://phobius.binf.ku.dk/cgi-bin/predict.pl',
{ stype => '0',
protseq => $keywords,
protfile => '',
"format" => '3',

});

if ($response->is_success) {
        $_ = $response->content;
        #print $_;

}
else{
        print $response->error_as_HTML;
}



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