Springer Nature: Table placement with [H] parameter error

Question

I am using the Springer Nature's sn-basic document class. I have lots of figure and tables. Whenever I am using \begin{table}[H] I am getting LaTeX Error: \begin{tableorg} on input line 603 ended by \end{table}. and LaTeX Error: \begin{table} on input line 603 ended by \end{document}.#

Here is the preamble.

\documentclass[pdflatex,sn-basic]{sn-jnl}
\usepackage{array}
\usepackage{float}
\usepackage{xcolor}
\usepackage{subfig}
\jyear{2022}%

\theoremstyle{thmstyleone}%
\newtheorem{theorem}{Theorem}%  meant for continuous numbers
\newtheorem{proposition}[theorem]{Proposition}% 

\theoremstyle{thmstyletwo}%
\newtheorem{example}{Example}%
\newtheorem{remark}{Remark}%

\theoremstyle{thmstylethree}%
\newtheorem{definition}{Definition}%
\providecommand{\tabularnewline}{\\}
\raggedbottom

Answer 1

In the documentclass sn-jnl.cls file:

Replace the lines 1339--1348:

\let\tableorg\table%
\let\endtableorg\endtable%

\renewenvironment{table}[1][]%
{\begin{tableorg}[#1]%
\tablebodyfont%
\renewcommand\footnotetext[2][]{{\removelastskip\vskip3pt%
\let\tablebodyfont\tablefootnotefont%
\hskip0pt\if!##1!\else{\smash{$^{##1}$}}\fi##2\par}}%
}{\end{tableorg}}

with

\let\tableorg\table%
\let\endtableorg\endtable%

\renewenvironment{table}[1][]%
{\tableorg[#1]%koleygr: Change here
\tablebodyfont%
\renewcommand\footnotetext[2][]{{\removelastskip\vskip3pt%
\let\tablebodyfont\tablefootnotefont%
\hskip0pt\if!##1!\else{\smash{$^{##1}$}}\fi##2\par}}%
}{\endtableorg}%koleygr: Change here

EDIT Without touching cls file:

Add this in your preamble (before loading float package)

\renewenvironment{table}[1][]%
{\tableorg[#1]%
\tablebodyfont%
\renewcommand\footnotetext[2][]{{\removelastskip\vskip3pt%
\let\tablebodyfont\tablefootnotefont%
\hskip0pt\if!##1!\else{\smash{$^{##1}$}}\fi##2\par}}%
}{\endtableorg}