Different Errors after Trying to Impliment New Lay-out [closed]

Question

I'm currently working on my thesis, and it is due next week. Until now I had no significant problems in LaTeX, and if I had, I was able to find answer on this site (thanks!). However, a few hours ago I tried to impliment a new lay-out. I got a .tex file from a friend called 'page-layout-definition' which she used. I tried to impliment it by placing \input{page-layout-definition} in my preamble, but it failed (40+ errors). Then I removed it, but when compiling, I kept 5 errors, which I couldn't remove uptil now. Here they are:

Latex Error: not in par mode ... l.1602 \begin{figure}[h]

! You can't use '\end' in internal vertical mode. \enddocument...\endgroup \deadcylces \z@ \@@end
l.1645 \end{document}

!Missing } inserted. l.1645 \end{document}

The other two are ! Emergency stop and ! ==> Fatal error.

I'm really confused since I didn't change anything, and the script is completely the same as before which didn't give the errors. Can anybody see what's wrong here?

    \documentclass[4pt,a4paper,onesize]{article}
    \usepackage[english]{babel}
    \usepackage[latin1]{inputenc}
    \usepackage{eurofont}
    \usepackage{float}
    \usepackage{marvosym}
    \usepackage{textcomp}
    \usepackage{graphicx,ctable,url,amsmath, marvosym}
    \usepackage[small,bf,hang]{caption2}
    \usepackage[top=3cm, bottom=2.5cm, left=2.2cm, right=2.2cm]{geometry}
    \usepackage{natbib}
    \usepackage{appendix}
    \usepackage{multicol}
    \usepackage{multirow, bigdelim}
    \usepackage{lipsum}
    \usepackage{remreset}
    \usepackage{fancyhdr}
    \usepackage{lscape}
    \setcounter{tocdepth}{5}
    \setcounter{secnumdepth}{5}
    \usepackage[all]{xy}
    \makeatletter
    \renewcommand{\l@section}{\@dottedtocline{1}{1em}{2.2em}}
    \renewcommand{\l@subsection}{\@dottedtocline{2}{3.0em}{2.2em}}
    \renewcommand{\l@subsubsection}{\@dottedtocline{3}{5em}{3.4em}}
    \makeatother
    \makeatletter
    \renewcommand{\thesection}{\thepart.\arabic{section}}
    \renewcommand{\thesubsection}{\arabic{section}.\arabic{subsection}}
    \makeatother
    \makeatletter
    \renewcommand\paragraph{\@startsection{paragraph}{4}{\z@}%
      {-3.25ex\@plus -1ex \@minus -.2ex}%
      {1.5ex \@plus .2ex}%
      {\normalfont\normalsize\bfseries}}
    \makeatother
    \makeatletter
    \renewcommand\subparagraph{\@startsection{subparagraph}{4}{\z@}%
      {-3.25ex\@plus -1ex \@minus -.2ex}%
      {1.5ex \@plus .2ex}%
      {\normalfont\normalsize\bfseries}}
    \makeatother
    \pagestyle{fancy}
    \fancyhead{}
    \fancyhead[RO,RE]{Title}
    \bibliographystyle{apalike}
    \title{Title}
    \author{Name}

    \begin{document}
\end{document}

A quick response would be deeply appreciated.