Solve Appendix error in Portuguese Language

% special thanks to Sálvio Marcelo Soares
% http://tex.stackexchange.com/a/185033

\makeatletter
\renewcommand
   {\appendixtocname}{Ap\^{e}ndices}
 \renewcommand
   {\appendixpagename}{Ap\^{e}ndices}
 \renewcommand
   {\appendixname}{Ap\^{e}ndice} \let\oriAlph\Alph
 \let\orialph\alph
 \renewcommand{\@resets@pp}
   {\par\@ppsavesec
     \stepcounter{@pps}%
     \setcounter{section}{0}%
     \if@chapter@pp
       \setcounter{chapter}{0}%
       \renewcommand\@chapapp{\appendixname}%
       \renewcommand\thechapter{\@Alph\c@chapter}%
     \else
       \setcounter{subsection}{0}%
       \renewcommand\thesection{\@Alph\c@section}%
     \fi
     \if@pphyper
       \if@chapter@pp
         \renewcommand
           {\theHchapter}
           {\theH@pps.\oriAlph{chapter}}%
       \else
         \renewcommand
           {\theHsection}
           {\theH@pps.\oriAlph{section}}%
       \fi
       \def\Hy@chapapp
          {appendix}%
     \fi
   \restoreapp
  }
\makeatother