I am getting several errors on overleaf and the main one is:Package biblatex Error: Incompatible package ‘natbib’. I know that probably natbib is loaded by one of my used packages which is incompatible with biblatex, but I don’t know which package it is. I appreciate any help on this.

Here is the code to it:

    documentclass[sn-mathphys-num]{sn-jnl}% Math and Physical 
%usepackage[a6paper,margin=15mm]{geometry}
usepackage{graphicx}%
usepackage{multirow}%
usepackage{amsmath,amssymb,amsfonts}%
usepackage{amsthm}%
usepackage{mathrsfs}%
usepackage[title]{appendix}%
usepackage{xcolor}%
usepackage{textcomp}%
usepackage{manyfoot}%
usepackage{algorithm}%
usepackage{algorithmicx}%
usepackage{algpseudocode}%
usepackage{listings}%
usepackage[utf8]{inputenc}
graphicspath{ {./figures/} }
usepackage[english]{babel}
usepackage[babel=true]{csquotes}
usepackage{caption}
usepackage[varg]{txfonts}
%%%%
usepackage{lmodern}
% number format
usepackage{flexisym}
usepackage[backend=biber,style=numeric]{biblatex}
%usepackage[square, numbers]{natbib}%
addbibresource{sn-bibliography.bib}
usepackage{tabularray}
usepackage{longtable}
UseTblrLibrary{booktabs}
%theoremstyle{thmstyleone}%
newtheorem{theorem}{Theorem}%  meant for continuous numbers
usepackage{anyfontsize}
newtheorem{proposition}[theorem]{Proposition}% 
%theoremstyle{thmstyletwo}%
newtheorem{example}{Example}%
newtheorem{remark}{Remark}%
%theoremstyle{thmstylethree}%
newtheorem{definition}{Definition}%
raggedbottom
begin{document}
some text here. can be anything.
end{document}