The following minimum working sample throws an error
! LaTeX Error: \begin{table} on input line 10 ended by \end{document}.
While pdflatex compiles without any error.
\documentclass{article}
\usepackage{footnote}
\makesavenoteenv{tabular}
\makesavenoteenv{table}
\begin{document}
\begin{table}[h]
\caption{Table Caption Here.}
\label{tab:lbl}
\begin{tabular}{ccccccccccccc} \hline
&&Data3 \footnote{Data3 Footnote.} & Data4 &&Data3& Data4 &&Data3& Data4 &&Data3& Data4 \\ \hline
\end{tabular}
\end{table}
\end{document}
Any Help?

footnotepackage (old and unmaintained) is not compatible with TeX4ht. – egreg Feb 16 '16 at 10:21