Cómo crear una hoja de aprobación

Question

Nuestro campus esperaba que preparáramos la hoja de aprobación como se muestra en la figura.. Aquí está el código

\newpage
\section*{Approval Sheet}
\addcontentsline{toc}{section}{Approval Sheet}
\begin{huge}
Wollo University
Kombolcha Institute of Technology
Department of Information Technology
Post-Graduate Program in Computer Networks and Communications \\[1.5cm]
\end{huge}

As member of the examining board of the final M.Sc. open defense, we certify that we
have read and evaluated the thesis done by \textbf{Name of Researcher} entitled with \textbf{Title Name} and recommend that it be accepted as fulfilling the thesis requirement for the degree of Master of Science in Computer Networks and Communications.\\[1.5cm]

\renewcommand{\arraystretch}{1.5}
\begin{tabular}{\linewidth}{@{}p{2.5cm}@{}X@{}@{}p{2.5cm}@{}@{}X@{}p{2.5cm}@{}}
\multicolumn{1}{c}{}& &  \multicolumn{1}{c}{} && \multicolumn{1}{c}{} \tabularnewline
&  &  &  & \tabularnewline
\cline{1-1} \cline{3-3} \cline{5-5}
\multicolumn{2}{@{}l@{}}{\small Name of Chairman} & &  \multicolumn{1}{c}{\textbf{Signature}} && \multicolumn{1}{c}{\textb{Date}}\tabularnewline[1ex]
&  &  &  & \tabularnewline
\cline{1-1} \cline{3-3} \cline{5-5}
\multicolumn{2}{@{}l@{}}{\small Name of Internal Examiner} & &  \multicolumn{1}{c}{\textbf{Signature}} && \multicolumn{1}{c}{\textb{Date}} \tabularnewline[1ex]
&  &  &  & \tabularnewline
\cline{1-1} \cline{3-3} \cline{5-5}
\multicolumn{2}{@{}l@{}}{\small Name of External Examiner} & &  \multicolumn{1}{c}{\textbf{Signature}} && \multicolumn{1}{c}{\textb{Date}} \tabularnewline[1ex]
&  &  &  & \tabularnewline
\cline{1-1} \cline{3-3} \cline{5-5}
\end{tabular}

Final approval and acceptance for the thesis is contingent upon the submission of the final copy the thesis to the Council of Graduate Studies (CGS) through Departmental Graduate Committee (DGC) of the Information Technology department.

\begin{tabular}{\linewidth}{@{}p{2.5cm}@{}X@{}@{}p{2.5cm}@{}@{}X@{}p{2.5cm}@{}}\multicolumn{1}{c}{\textbf{Name of the Advisor}}& &  \multicolumn{1}{c}{\textbf{Signature}} && \multicolumn{1}{c}{\textbf{Date}} \tabularnewline
\end{tabular}

El error que encontré es este:

Answer 1

Este es un ejemplo práctico. Sin embargo, no conozco su clase de documento. Debería estar funcionando de todos modos.

\documentclass{report}
\usepackage{xcolor}

\begin{document}
\thispagestyle{empty}
\addcontentsline{toc}{section}{Approval Sheet}
\begin{center}
\Large\bfseries Wollo University\vspace{0.5cm}

Kombolcha Institute of Technology\vspace{0.5cm}

Department of Information Technology\vspace{0.5cm}

Post-Graduate Program in Computer Networks and Communications
\end{center}\vspace{1cm}

As member of the examining board of the final M.Sc. open defense, we certify that we
have read and evaluated the thesis done by \textbf{Researcher name} entitled with \textbf{Title of Research} and recommend that it be accepted as fulfilling the thesis requirement for the degree of Master of Science in Computer Networks and Communications.\vspace{1cm}

\noindent\begin{tabular*}{\linewidth}{@{\extracolsep{\fill}}lll@{}}
First Last & &02/10/2023 \\[-1ex]
\rule{3cm}{1pt} & \rule{2cm}{1pt} & \rule{2.5cm}{1pt} \\
Name of Chairman & Signature & Date \\[2em]
\rule{3cm}{1pt} & \rule{2cm}{1pt} & \rule{2.5cm}{1pt}\\
Name of Internal Examiner & Signature & Date\\[2em]
\rule{3cm}{1pt} & \rule{2cm}{1pt} & \rule{2.5cm}{1pt}\\
Name of Internal Examiner & Signature & Date\\
\end{tabular*}\vspace{1cm}

Final approval and acceptance for the thesis is contingent upon the submission of the final copy the thesis to the Council of Graduate Studies (CGS) through Departmental Graduate Committee (DGC) of the Information Technology department.\vspace{1cm}

\noindent\begin{tabular*}{\linewidth}{@{\extracolsep{\fill}}lll@{}}
\color{blue}First Last &  & \color{blue}Oct 2,2023 \\[-1ex]
\rule{3cm}{1pt} & \rule{2cm}{1pt} & \rule{2.5cm}{1pt} \\
Name of Thesis Advisor & Signature & Date \\
\end{tabular*}
\end{document}