[Tex/LaTex] How to remove the blank page before the title page

Question

I'm using latexian to edit my manuscript. However, the first page is blank. The following is my latex code. How could I deal with this problem?

\documentclass{article}
\usepackage{authblk}
\usepackage{geometry}
\usepackage{cite}
\begin{document}
\title{paper}
\author[1*]{author A}
\author[1]{ author B}
\author[2]{author C}
\affil[1] {Department of A, University of ABC}.\\
\affil[2]{Department of B, University of CBA}.\\
\affil[*]{Corresponding author: abc@email.abc.edu}
\date{}
\maketitle
\begin{abstract}
content
\end{abstract}
\section{Introduction}
content
\end{document}

Answer 1

There are some .\\ after \afil commands that goes to the first page. Without the blank page is gone:

\documentclass{article}
\usepackage{authblk}
\usepackage{geometry}
\usepackage{cite}
\begin{document}
\title{paper}
\author[1*]{author A}
\author[1]{ author B}
\author[2]{author C}
\affil[1]{Department of A, University of ABC}
\affil[2]{Department of B, University of CBA}
\affil[*]{Corresponding author: abc@email.abc.edu}
\date{}
\maketitle
\begin{abstract}
content
\end{abstract}
\section{Introduction}
content
\end{document}