I'm trying to add the ORCiD logo to the moderncv using `\moderncvstyle{classic}`, but I always get an error. 

For the symbol itself, I tried using `academicons` package described here:
[Is there a standard way to include ORCID in TeX / PDF?](https://tex.stackexchange.com/questions/275578/is-there-a-standard-way-to-include-orcid-in-tex-pdf)
and also using tikz following the steps here:
[IEEEtran - How to include ORCID in TeX/PDF with PdfLatex](https://tex.stackexchange.com/questions/445563/ieeetran-how-to-include-orcid-in-tex-pdf-with-pdflatex/445583) 

Then, I just got the example from this answer:
<https://tex.stackexchange.com/a/464850/143252>
and noted that by just changing the model from `banking` to `classic`, it already gives the error:

`./test_cv.tex:60: Argument of \@firstoftwo has an extra }.
 <inserted text> 
 \par 
 l.60 \makecvtitle`

Here is the code that works with `\moderncvstyle{banking}` but not with `\moderncvstyle{classic}`:

```
\documentclass[11pt,a4paper,sans]{moderncv}

% moderncv themes
\moderncvstyle{classic} % casual, classic, banking, oldstyle and fancy
\moderncvcolor{blue} 

\usepackage[utf8]{inputenc}

\usepackage[scale=0.75]{geometry}

% makes a https hyperlink
% usage: \httpslink[optional text]{link}
\newcommand*{\httpslink}[2][]{% <=======================================
  \ifthenelse{\equal{#1}{}}%
    {\href{https://#2}{#2}}%
    {\href{https://#2}{#1}}}

\newcommand*{\googlescholarsocialsymbol}  {\includegraphics[width=0.5cm]{example-image-a}~} % <===================
\newcommand*{\researchgatesocialsymbol}  {\includegraphics[width=0.5cm]{example-image-b}~} % <===================
\newcommand*{\testsocialsymbol}  {\includegraphics[width=0.5cm]{example-image-c}~} % <===================

\makeatletter
\RenewDocumentCommand{\social}{O{}O{}m}{%
  \ifthenelse{\equal{#2}{}}%
    { 
    \ifthenelse{\equal{#1}{linkedin}}{\collectionadd[linkedin]{socials}{\protect\httpslink[#3]{www.linkedin.com/in/#3}}}{}%
    \ifthenelse{\equal{#1}{googlescholar}}{\collectionadd[googlescholar]{socials}{\protect\httpslink[#3]{www.googlescholar.com/profile/#3}}}{}% <================================================================
    \ifthenelse{\equal{#1}{researchgate}}{\collectionadd[researchgate]{socials}{\protect\httpslink[#3]{www.researchgate.com/profile/#3}}}{}% <================================================================
      \ifthenelse{\equal{#1}{twitter}} {\collectionadd[twitter]{socials} {\protect\httpslink[#3]{www.twitter.com/#3}}}    {}%
      \ifthenelse{\equal{#1}{github}}  {\collectionadd[github]{socials}  {\protect\httpslink[#3]{www.github.com/#3}}}     {}%
    }
    {\collectionadd[#1]{socials}{\protect\httpslink[#3]{#2}}}}
\makeatother

% personal data
\name{John}{Doe}
\title{Resumé title}
\address{street and number}{postcode city}{country}
\phone[mobile]{+1~(234)~567~890}
\phone[fixed]{+2~(345)~678~901}
\phone[fax]{+3~(456)~789~012}
\email{john@doe.org}
\homepage{www.johndoe.com}
\social[linkedin]{john.doe}
\social[twitter]{jdoe}
\social[github]{jdoe}
\social[googlescholar]{john.doe} % <====================================
\social[researchgate]{john.doe} % <=====================================
\social[test][www.test.com/profile/john.doe]{john.doe} % <=====================================
\extrainfo{additional information}
\quote{Some quote}

\setlength{\footskip}{66pt} 

\begin{document}

\makecvtitle

\section{Education}
\cventry{year--year}{Degree}{Institution--3}{City--4}{\textit{Grade}--5}{Description--6}  % arguments 3 to 6 can be left empty
\cventry{year--year}{Degree}{Institution}{City}{\textit{Grade}}{Description}

\section{Master thesis}
\cvitem{title}{\emph{Title}}
\cvitem{supervisors}{Supervisors}
\cvitem{description}{Short thesis abstract}

\section{Experience}
\subsection{Vocational}
\cventry{year--year}{Job title}{Employer}{City}{}{General description 
  no longer than 1--2 lines.\newline{}%
Detailed achievements:%
\begin{itemize}%
\item Achievement 1;
\item Achievement 2, with sub-achievements:
  \begin{itemize}%
  \item Sub-achievement (a);
  \item Sub-achievement (b), with sub-sub-achievements (don't do this!);
    \begin{itemize}
    \item Sub-sub-achievement i;
    \item Sub-sub-achievement ii;
    \item Sub-sub-achievement iii;
    \end{itemize}
  \item Sub-achievement (c);
  \end{itemize}
\item Achievement 3.
\end{itemize}}
\cventry{year--year}{Job title}{Employer}{City}{}{Description 
  line 1\newline{}Description line 2}
\subsection{Miscellaneous}
\cventry{year--year}{Job title}{Employer}{City}{}{Description}

\section{Languages}
\cvitemwithcomment{Language 1}{Skill level}{Comment}
\cvitemwithcomment{\textbf{Language} 2}{\textbf{Skill} level}{Comment}
\cvitemwithcomment{Language 3}{Skill level}{Comment}

\section{Computer skills}
\cvdoubleitem{category 1}{XXX, YYY, ZZZ}{category 4}{XXX, YYY, ZZZ}
\cvdoubleitem{category 2}{XXX, YYY, ZZZ}{category 5}{XXX, YYY, ZZZ}
\cvdoubleitem{category 3}{XXX, YYY, ZZZ}{category 6}{XXX, YYY, ZZZ}

\section{Interests}
\cvitem{hobby 1}{Description}
\cvitem{hobby 2}{Description}
\cvitem{hobby 3}{Description}

\section{Extra 1}
\cvlistitem{Item 1}
\cvlistitem{Item 2}
\cvlistitem{Item 3. This item is particularly long and therefore 
  normally spans over several lines. Did you notice the indentation 
  when the line wraps?}

\section{Extra 2}
\cvlistdoubleitem{Item 1}{Item 4}
\cvlistdoubleitem{Item 2}{Item 5}
\cvlistdoubleitem{Item 3}{Item 6. Like item 3 in the single column list before, this item is particularly long to wrap over several lines.}

\section{References}
\begin{cvcolumns}
  \cvcolumn{Category 1}{\begin{itemize}\item Person 1\item Person 2\item Person 3\end{itemize}}
  \cvcolumn{Category 2}{Amongst others:\begin{itemize}\item Person 1, and\item Person 2\end{itemize}(more upon request)}
  \cvcolumn[0.5]{All the rest \& some more}{\textit{That} person, and \textbf{those} also (all available upon request).}
\end{cvcolumns}

\end{document} 

```