Why is LaTeX refusing to create a new page to place content?

Question

Ihave stumbled upon strange behavior (at least for me). I am generating a document composed of a set of blank framed boxes, each with a text attached above, and it will always be most likely necessary to span more than page. But as soon as the number of boxes-texts warrants a new page, pdfLaTeX simply refuses to do so, throwing a "Missing $ inserted" error.

I'm attaching my source, trying as much as possible to keep it short. The companylogo is placed next to this .tex file (But curious enough, it does not appear in the output).

Thank you.

\documentclass[12pt,lettersize,twoside,twocolumn]{article}

\usepackage[utf8]{inputenc}
\usepackage[spanish,es-tabla]{babel}  % The original content is written in spanish.
\usepackage[fixlanguage]{babelbib}
\usepackage{amssymb,amsmath}
\usepackage{graphicx}   
\usepackage{array}   
\usepackage{caption}
\usepackage{subcaption}
\usepackage{rotating}
\usepackage{booktabs}
\usepackage{multirow}
\usepackage{calc}
\usepackage{stfloats}
\usepackage{fixltx2e}

% Document margins
\usepackage[top=1cm, bottom=1cm, left=1cm, right=1cm]{geometry}

% Headers Config.
\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyhead{}
\renewcommand{\headrulewidth}{0.4pt}
\setlength{\headheight}{2.5cm} 
\addtolength{\textheight}{-2.22cm}
\fancyhead[LO,RE]{\includegraphics[height=2.22cm]{companylogo}}
\fancyhead[LE,RO]{}

% Footers Config.
\fancyfoot{}
\renewcommand{\footrulewidth}{0pt}
\fancyfoot[C]{\thepage} 
% Use dot as decimal point
\decimalpoint
% Enable page-broken equations
\allowdisplaybreaks[2]
% Command macros
\newcommand{\HRule}{\rule{\linewidth}{0.5mm}}
\newcommand{\emptybox}[2]{\fbox{\begin{minipage}{#1}\hfill\vspace{#2}\end{minipage}}}
\newcommand{\elembox}[1]{\begin{center}#1 \\ \emptybox{3cm}{3cm} \end{center}}

\title{SomeTitle}

% Remove author and date info from title
\makeatletter
\renewcommand{\@maketitle}{
 \vspace{-2cm}
 \begin{center}%
  {\LARGE \@title}%
 \end{center}%
 \par} \makeatother

\begin{document}
\maketitle

\elembox{1206 (1)}
\elembox{2512 (2)}
\elembox{0805 (1)}
\elembox{carbon-resistor-0.5W (1)}
\elembox{oar-5 (1)}
\elembox{1206 (2)}
\elembox{0603 (2)}
\elembox{2416 (1)}
\elembox{oar-5 (1)}
\elembox{carbon-resistor-0.5W (1)}
\elembox{qfn40 (1)}
\elembox{dip44 (2)}
% Up to this many \elemboxes this compiles. but if you uncomment the one below, BOOM.

% \elembox{dip8 (2)}
% More \elemboxes to follow, but starting from the one above, pdfLaTeX throws the error.

\end{document}

Answer 1

As pointed out in the comments your code works well.

Something goes wrong with your picture. However LaTeX can handle relative paths.

A relative path is setup with ../. You can also use \graphicspath:

How to use \graphicspath + epstopdf

Note that spaces in paths need special handling.

There might also be a problem in using ~/ for denoting a path, as ~ has special meaning. You might try \string~/ instead.