If I use cleveref tool, I get the following error:
! TeX capacity exceeded, sorry [input stack size=5000].
To totally understand the issue, I give you complete original tex code: as:
\RequirePackage{fix-cm}
%
\documentclass[smallextended]{svjour3} % onecolumn (standard format)
\smartqed % flush right qed marks, e.g. at end of proof
\usepackage{amsmath} % for \boldsymbol macro
\usepackage{bm} % for \bm macro
\usepackage[numbers,sort&compress]{natbib}
\usepackage{booktabs,makecell,tabularx}
\usepackage{commath}
\usepackage{amssymb}
\usepackage{multirow,caption}
\usepackage{subfig}
\usepackage{graphicx}
\usepackage{hyperref}
\usepackage{cleveref}
\begin{document}
\title{12234}
\author{abcde}
%\authorrunning{Short form of author list} % if too long for running head
\institute{Zasdasdas % \\
% \emph{Present address:} of F. Author % if needed
}
\maketitle
\begin{abstract}
1232445345
\end{abstract}
\section{Introduction}
%%%
12312343
%%%
\end{document}
% end of file template.tex