Is modiagram still functional?

Question

I have been trying to get the package modiagram to work. Unfortunately, every time I try to compile my tex code, I get an error. I've looked around and there does not seem to be much on the package and hasn't been updated for over a year.

I've created a new document and copied the readme examples and none of them have worked.

Thank you

Here is the document

\documentclass[letterpaper,12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{microtype}
\usepackage{blindtext}
\usepackage{wrapfig}
\usepackage{mathtools}
\usepackage[english]{babel}
\usepackage{fancyhdr}
\usepackage[a4paper, inner=1.7cm, outer=2.7cm, top=2cm,  bottom=2cm, bindingoffset=1.2cm]{geometry}
\usepackage[labelfont=bf]{caption}
\usepackage{float}
\usepackage{titling}
\usepackage{breqn}
\usepackage{physics}
\usepackage{esdiff}
\usepackage[version=4]{mhchem}
\usepackage{modiagram}



\newcommand{\eq}[1]{\begin{equation} #1 \end{equation}}
\newcommand{\com}[2]{[\hat{#1},\hat{#2}]}
\newcommand{\dhat}[2]{\hat{#1}\hat{#2}}
\newcommand{\minus}{\scalebox{0.75}[1.0]{$-$}}
\newcommand\blfootnote[1]{%
  \begingroup
  \renewcommand\thefootnote{}\footnote{#1}%
  \addtocounter{footnote}{-1}%
  \endgroup
}
\begin{document}
\title{Title}
\author{me \ Lab Section 02}
\date{September 18th, 2020}
\maketitle
\begin{abstract}
blah blah this isn't published yet


\end{abstract}
\blfootnote{people}
\newpage
\section*{Introduction}
not published
\section*{Experimental Details}
Infrared absorption data of HCl gas was collected using an FTIR spectrometer.
\section*{Results and Analysis}
\begin{figure}[hb]
    \centering
    \includegraphics[width=10cm]{Aug14HClpks_Trans.png}
    \caption{Absroption Spectrum of HCl gas}
    \label{HClspectrum}
 \end{figure}
\section*{Summary and Conclusion}
\begin{modiagram}
    \atom{left}{1s, 2s, 2p}
\end{modiagram}
\section*{References}
\end{document}

Latexmk: This is Latexmk, John Collins, 26 Dec. 2019, version: 4.67.
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Running 'pdflatex  -synctex=1 -interaction=nonstopmode -file-line-error -recorder -output-directory="/Users/me/Documents/rest of path"  "/Users/william/Documents/Stony Brook/Fall 2020/CHE357/HCl - Rotovibrational/HCl Document/WilliamLaderer_HCl.tex"'
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(/Users/me/Documents/rest of path  - Rotovibrational/HCl Document/me_HCl.tex
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> \l__modiagram_atom_two_s_dim=56.9055pt.
<recently read> }

l.84    \atom{left}{1s, 2s, 2p}

[2 </Users/me/Documents/rest of path - Rotovibrational/HCl Document/Aug14HClpks_Trans.png (PNG copy)>] [3] (/Users/me/Documents/rest of path  Document/me_HCl.aux)

LaTeX Warning: Label(s) may have changed. Rerun to get cross-references right.

 )
(see the transcript file for additional information)</usr/local/texlive/2020/texmf-dist/fonts/type1/public/amsfonts/cm/cmbx10.pfb></usr/local/texlive/2020/texmf-dist/fonts/type1/public/amsfonts/cm/cmbx12.pfb></usr/local/texlive/2020/texmf-dist/fonts/type1/public/amsfonts/cm/cmmi10.pfb></usr/local/texlive/2020/texmf-dist/fonts/type1/public/amsfonts/cm/cmr10.pfb></usr/local/texlive/2020/texmf-dist/fonts/type1/public/amsfonts/cm/cmr12.pfb></usr/local/texlive/2020/texmf-dist/fonts/type1/public/amsfonts/cm/cmr17.pfb></usr/local/texlive/2020/texmf-dist/fonts/type1/public/amsfonts/cm/cmr8.pfb></usr/local/texlive/2020/texmf-dist/fonts/type1/public/amsfonts/cm/cmsy8.pfb>
Output written on "/Users/william/Documents/Stony Brook/Fall 2020/CHE357/HCl - Rotovibrational/HCl Document/WilliamLaderer_HCl.pdf" (3 pages, 141868 bytes).
SyncTeX written on /Users/me/Documents/path - Rotovibrational/HCl Document/me_HCl.synctex.gz.
Transcript written on "/Users/me/Documents/path - Rotovibrational/HCl Document/me_HCl.log".
Latexmk: References changed.
Latexmk: Log file says output to 'WilliamLaderer_HCl.pdf'
Collected error summary (may duplicate other messages):
  pdflatex: Command for 'pdflatex' gave return code 1
      Refer to '/Users/me/Documents/path - Rotovibrational/HCl Document/me_HCl.log' for details
Latexmk: Use the -f option to force complete processing,
 unless error was exceeding maximum runs, or warnings treated as errors.
=== TeX engine is 'pdfTeX'
Latexmk: Errors, so I did not complete making targets