如何解决错误 Too many }'s

Question

我给出了如下代码，但是出现了太多错误}

   \documentclass[11pt,a4paper]{article}
\usepackage[a4paper,bindingoffset=0.2in,%
            left=1in,right=1in,top=1in,bottom=1in,%
            footskip=.25in]{geometry}
\usepackage{fontspec}
\usepackage[sfdefault,light]{roboto}
\usepackage{fancyhdr}
\usepackage[dvips]{graphicx}
\usepackage{rotating}
\usepackage{xcolor}
\PassOptionsToPackage{dvipsnames}{xcolor}
\definecolor{tuftsblue}{rgb}{0.28, 0.57, 0.81}
\definecolor{cobalt}{rgb}{0.0, 0.28, 0.67}
\begin{document}

flushleft
{\color{cobalt}
\Large{contents}\\
}
\centering
\raggedright
 This is my first document……………………………………............................................................... 3\\
 \vspace{3mm}
 This is my first document…………………………………………………………........................................... 4\\
  \vspace{3mm}
 This is my first document……………………………………………...….......................…..........................5\\
  \vspace{3mm}
  This is my first document………………………………………………….....….......................…..................8\\
  \vspace{3mm}
 This is my first document…………………………………………………................................................... 9\\
  \vspace{3mm}
 This is my first document…………………….……………………………………………....................................28\\
  \vspace{3mm}
 This is my first document………………………………………………….....................................................69\\
 \newpage
                    }
\flushleft
{\color{cobalt}
\Large{xxx}
}
\begin{figure}[!hbt]
  \centering
  \includegraphics[width=4in]{Italy.png}
\end{figure}
\begin{table}[!hbt]
\centering
\begin{tabular}{|l|l|}
\hline
 dates : & 4th, Dec 2019 \\\hline
 Site : & x ,y \\\hline
 Capacity: & xxx \\\hline
 type: & fixedi \\\hline
 \end{tabular}
\end{table}\\
\end{document}