Error message on pastehub debian package.

pastehub_debian_package_error.txt

root@genkan:/tmp# dpkg -i --force-architecture pastehub_0.1.5-2_i386.deb 
dpkg: 警告: --force が有効なので、問題を無視します:
 パッケージアーキテクチャ (i386) がシステム (amd64) と一致しません
未選択パッケージ pastehub を選択しています。
(データベースを読み込んでいます ... 現在 130296 個のファイルとディレクトリがインストールされています。)
(pastehub_0.1.5-2_i386.deb から) pastehub を展開しています...
pastehub (0.1.5-2) を設定しています ...
/opt/pastehub/ruby-1.9.3-p194/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
ERROR:  Loading command: install (LoadError)
    libz.so.1: cannot open shared object file: No such file or directory - /opt/pastehub/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/zlib.so
ERROR:  While executing gem ... (NameError)
    uninitialized constant Gem::Commands::InstallCommand
/opt/pastehub/ruby-1.9.3-p194/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
ERROR:  Loading command: install (LoadError)
    libz.so.1: cannot open shared object file: No such file or directory - /opt/pastehub/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/zlib.so
ERROR:  While executing gem ... (NameError)
    uninitialized constant Gem::Commands::InstallCommand
/opt/pastehub/ruby-1.9.3-p194/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
ERROR:  Loading command: install (LoadError)
    libz.so.1: cannot open shared object file: No such file or directory - /opt/pastehub/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/zlib.so
ERROR:  While executing gem ... (NameError)
    uninitialized constant Gem::Commands::InstallCommand
root@genkan:/tmp#