Can't compile chemschemex and biblatex in document

Question

I am a complete novice to LaTeX and have a problem when compiling my document. Whenever I try turning on chemschemex in my document, I get error messages and the document doesn't compile. After testing the packages I have used until now, I think the problem might be with biblatex and chemschemex. But I don't know why.

I compile using the sequence: PdfLaTeX, BibTeX, PdfLaTeX, PdfLaTeX.

I have also enabled pdflatex -synctex=1 -interaction=nonstopmode -enable-write18 %.tex.

The document compiles for me only if I turn on either biblatex or chemschemex, but not both at the same time.

\documentclass[]{scrartcl}
\usepackage[ngerman]{babel} 

\usepackage[backend=bibtex,style=chem-angew,sorting=none,autocite=superscript,giveninits=true,terseinits=false]{biblatex}
\renewcommand*{\bibinitdelim}{} 
\addbibresource{\jobname.bib}

\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
    @Book{buch,
        Title                    = {Tolles Buch},
        Author                   = {Autor, A.},
        Publisher                = {Verleger},
        Year                     = {2017},
        Edition                  = {1},     
        Location                 = {Berlin}
    }
    }
\end{filecontents}

%\usepackage{chemschemex}



\begin{document}

Dies ist der erste Satz meiner tollen Arbeit.\autocite{buch}
 In diesem Satz verweise ich auf Verbindung %\structref{maleimid}.

%\begin{center}
%   \begin{Chemscheme}
%       \struct[][][scale=1]{maleimid}
%       \RightArrow{\struct[][][scale=1]{cp}}{DEE}
%       \struct[80\,\%][][scale=1]{product}
%   \end{Chemscheme}
%\end{center}

\printbibliography


\end{document}