Certificates with datatool [closed]

Question

I want to import data from a CSV to a LaTeX file with the datatool package, but I get error messages like:

Undefined control sequence.
Missing } inserted.
Missing } inserted.
Missing \cr inserted.
Missing { inserted.
Misplaced \crcr.
Extra }, or forgotten \endgroup.
Missing } inserted.
Missing } inserted.

Please what is the problem with this code?

%
% texlive-lang-arabic (for fmultico.sty)
% ttf-arabeyes (for arabic fonts)

\documentclass[a4paper]{article}
\usepackage[a4paper,left=2cm,right=2cm,top=2cm,bottom=2cm]{geometry}
\usepackage{pdflscape,setspace,amsmath,amssymb}
\usepackage{bidi}
\usepackage{longtable}
%\usepackage{fmultico}
\usepackage{etex}
%\usepackage[postcorrect,noshuffle,insidebox]{automultiplechoice}
\usepackage{amsmath}\usepackage{xltxtra}\usepackage{arabxetex}
\usepackage{datatool}
\DTLloaddb{names}{ph1.csv}
%\usepackage{calligra}
\usepackage{tgschola}
\usepackage{fourier-orns}
\usepackage{graphicx}
\usepackage{wallpaper}
\newfontfamily{\arabicfont}[Script=Arabic,Scale=1]{Rasheeq}
\usepackage[normalem]{ulem}
\usepackage{charter}
\usepackage{microtype}
\hyphenpenalty 100000

\def\signature#1#2{\parbox[b]{1in}{\smash{#1}\vskip12pt}
\hfill \parbox[t]{3cm}{\shortstack{\vrule width 3cm height 0.4pt\\\small#2}}}
\def\sigskip{\vskip0.4in plus 0.1in}
        \def\beginskip{\vskip0.5875in plus 0.1in}

\begin{document}
\begin{landscape}
\pagestyle{empty}
\TileWallPaper{1\paperwidth}{1\paperheight}{border-2.jpg}
%=============================%import the data from csv
\DTLforeach{names}{\name=الاسم,\dg=الدرجة,\stunum=A:StudentNum,\subj=subject}{
\noindent{\color{black}\Huge\decoone\decofourleft\hfill\decofourright\decoone\\
\rotatebox[origin=rt]{-90}{\decofourleft}\hfill\rotatebox[origin=lt]{90}{\decofourright}}

{\centering
%=============================% start print the data in pdf
%=============================% print the 1st logo 
\noindent
\begin{minipage}[l]{3cm}
 \includegraphics[width=.72\linewidth]{moe}
\end{minipage}
\hfill
%%=============================% print the title
\begin{minipage}[c]{6cm}
{\centering
{\onehalfspacing
    {\LARGE\bfseries{\textarab{المملكة العربية السعودية}}}\\%\initfamily
    {\large\bfseries\textarab{وزارة التربية والتعليم}}\\
    {\textarab{جدة}} -- {\textarab{ادارة التربية والتعليم}}\\
    \vskip0.4em
    {\Large\bfseries\textarab{ثانوية الملك فيصل}}}\\
    \par}
\end{minipage}
\hfill
%=============================% print the 2nd logo
\begin{minipage}[r]{3cm}
\includegraphics[width=.92\linewidth]{crown}
\end{minipage}
\vskip1em
%=========%end the logo
%=====%print the header of the content
    {\huge\bfseries\textarab{ شهادة شكر وتقدير}}\par    {\LARGE\color{black}\decofourleft\quad{\color{black}\decoone}\quad\decofourright}\par
    \vskip2em
%=====%print the content with the student name  
    {\textarab{يسرنا أن نهنئ ابننا الدارس: \name}}\par
    {\large\textarab{ على جده واجتهاده ، وحرصه على الارتقاء بمستواه التعليمي والتربوي حيث كانت نتيجته:}}\par}


%============================%print the table 

\vspace{-0.3cm}
\begin{center}
\begin{arab}    
    \begin{minipage}{0.97\linewidth}
\begin{longtable}{|p{5cm}|p{2cm}|p{2cm}|p{3cm}|}
\hline
النسبة المئوية & الدرجة & المادة & رقم الطالب\\
\hline
\subjec & \dg & \subj & \stunum\\[2ex]
\hline
\end{longtable}   
     \vspace{-0.05cm}
    \end{minipage}
    \end{arab}
\end{center}
%=======================%end the table
%================%start the end of content
\begin{center}
\textarab{متمنين له دوام التوفيق والنجاح،،}
\end{center}
\vspace{0.5cm}
%==================%start the signature

\noindent
%\beginskip
{\singlespacing
\vfil
\begin{minipage}[c]{4cm}\begin{center}
\sigskip \signature{\textarab{رئيس القسم}}{\textarab{د.عبد الله الصبحي \\ مدير المدرسة }}
\end{center}\end{minipage}
\hfill
\begin{minipage}[r]{4cm}\begin{center}
\sigskip \signature{\textarab{مدرس المادة}}{\textarab{د.سعيد الزهراني \\ مدرس المادة }}
\end{center}\end{minipage}}

%==================%end the signature
    \noindent{\color{black}\Huge
    \rotatebox[origin=lb]{-90}{\decofourright}\hfill\rotatebox[origin=rb]{90}{\decofourleft}\\
    \decoone\rotatebox[origin=c]{180}{\decofourright}\hfill\rotatebox[origin=c]{180}\decofourleft\decoone}

\pagebreak
}
\end{landscape}   
\end{document}