Latex '\cline' command throwing error

Question

I am writing a manuscript for Springer Nature. My Latex code is as follows.

\documentclass[sn-mathphys,Numbered]{sn-jnl}
\usepackage{graphicx}
\usepackage{multirow}
\usepackage{amsmath,amssymb,amsfonts}
\usepackage{amsthm}
\usepackage{mathrsfs}
\usepackage[title]{appendix}
\usepackage{xcolor}
\usepackage{textcomp}
\usepackage{manyfoot}
\usepackage{booktabs}
\usepackage{algorithmicx}
\usepackage{algpseudocode}
\usepackage{listings}
\usepackage{breqn}
\usepackage[ruled,nofillcomment]{algorithm2e}
\usepackage{upgreek}
\usepackage{amssymb}
\usepackage{setspace}
\usepackage{epstopdf}
\usepackage{float}
\usepackage{caption}
\usepackage{geometry}
\geometry{verbose,a4paper,tmargin=30mm,bmargin=30mm,lmargin=30mm,rmargin=20mm}
\usepackage{graphics}
\usepackage{setspace}
\usepackage{epsfig}
\usepackage{lscape}
\usepackage{amsthm}
\usepackage{subcaption}
\usepackage{enumerate}
\usepackage{tabu}
\begin{document}
\begin{table}[!t]
\centering
\scriptsize
\begin{tabular}{|l|l|l|l|l|}
\hline
Col 1 & Col 2 & Col 3 & Col 4 & Col 5 \
\hline
\multirow{2}{}{R-1} & A1 & B1 & C1 & D1 \ \cline{2-5}
& E1 & F1 & G1 &  H1 \ \cline{1-5}
\multirow{2}{}{R-2} & A2 & B2 & C2 & D2 \ \cline{2-5}
& E2 & F2 & G2 & H2 \ \cline{1-5}
\hline
\end{tabular}
\caption{\scriptsize{Sample Table Data}}
\label{Table1}
\end{table}
\end{document}

While running, this code is showing the following error.

**! Undefined control sequence. \cline

l.44 ...w{2}{*}{R-1} & A1 & B1 & C1 & D1 \ \cline {2-5}**

However, when I am using a different documentclass, the code is running fine. How can I make this table work in Springer Nature template?