perlのプログラムを実行すると、以下のエラー内容がでて困っております。
自分自身、perlを使うのがはじめてで、非常にざっくりした質問内容になってしまいますが、
ヒントなどをご教示いただけると助かります。
プログラムの内容は京都大学テキストコーパスというもので、
ここからダウンロードできます。
http://nlp.ist.i.kyoto-u.ac.jp/index.php?%E4%BA%AC%E9%83%BD%E5%A4%A7%E5%AD%A6%E3%83%86%E3%82%AD%E3%82%B9%E3%83%88%E3%82%B3%E3%83%BC%E3%83%91%E3%82%B9

euc-jp "\xE7" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x84" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\xA1" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\xBD" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x99" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\xE9" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x8C" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x8A" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x81" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x93" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\xE3" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x81" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x9D" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\xE5" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x84" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x81" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\x97" does not map to Unicode at ./src/format.pl line 91.
euc-jp "\xE3" does not map to Unicode at ./src/format.pl line 91.