Undefined control sequence

I am making my Master's Thesis with LaTeX, but I can't get the provided style to work. Specifically, I get the error 'Undefined control sequence' when using the function makeformaltitlepages, which is defined in mscthesis.sty. On the internet, the only answer I could find is the straightforward 'you probably made a typo', or 'you probably forgot to include the package', but I have reason to believe neither of those apply to me.

In the preamble, I set several variables using macros defined in the style file, such as my name and the company information of the company that provided the assignment. After the beginning of the document, the function maketitlepages is called from the style file, which creates several title pages matching the university style.

[edit]

After finding the solution, I now know where the error comes from. Below is a small style file and a small document that can be compiled to recreate the error. In a nutshell, I used includegraphics to include an image file whose filename contained a space.

example.sty:

\def\company#1{\gdef\@company{#1}}

\def\maketitlepages
{\begingroup
    \newpage
    \noindent
    \begin{center}
        \vskip 0em \rule{\textwidth}{1.5pt}
        \vskip 1em {\Huge \@title \par}
        \vskip 1em \rule{\textwidth}{1.5pt} \par \nobreak
        \vskip 4em {\large A DOCUMENT}
        \vskip 2em by
        \vskip 2em {\large \@author}
        \vfill
        \@company
    \end{center}
    \newpage
\endgroup}

document.tex:

\documentclass{article}
\usepackage{url}
\usepackage{example}
\usepackage[dvips]{graphicx}
\usepackage[dvips]{color}

\author{Your name}

\company{
  \includegraphics[width=4cm]{company logo.eps}\\
  A Company\\
  Addressline 1\\
  Addressline 2\\
  Country\\
  \url{www.acompany.com}
}

\title{Undefined control sequence}

\begin{document}

\pagestyle{empty}
\maketitlepages