使用 standalone.sty 时出错 - 内存超出

Question

我的序言中有以下内容：

\documentclass[12pt,PhD,wordcount,twoside,anon]{muthesis}
    \usepackage{graphicx,stackengine}
    \usepackage{url} 
    \usepackage{tikz}
    \usepackage[english]{babel}
    \usepackage{amsmath, amssymb, afterpage,float, cancel}
    \usepackage{xcolor, graphicx,enumerate}
    \usepackage{bm} 
    \usepackage{siunitx}
    \usepackage{multirow}
    \usepackage{mathtools} %right cases (rcases)
    \usepackage[para]{threeparttable} % for footnotes inside table
    \usepackage{chemformula}
    \usepackage{gensymb} %for \degree symbol
    \usepackage{comment}
    \usepackage{longtable}
    \usepackage{booktabs} %\toprule, \bottomrule, \midrule
    \usepackage{mdframed}
    \usepackage[labelfont =bf,font=small,justification=justified]{caption}
    \usepackage[labelfont =bf,font=small,justification=centering]{subcaption} 
    \usepackage[subpreambles = true]{standalone} %standalone tikzpicture
    \usepackage{pgfplots} 
    \pgfplotsset{compat=1.3}
    \usepackage[
    backend=bibtex,
    style=authoryear-ibid,
    citestyle=authoryear,
    natbib=true,
    sorting=nyvt,
    firstinits=true,
    uniquename=init,  % this option is compatible with firstinits
    maxcitenames=2,
    maxbibnames=99
    citetracker=true,
    doi=false,isbn=false,url=false
    ]{biblatex}
    \usepackage[hidelinks,hypertexnames=false]{hyperref}

它给出了以下错误。还说 tex 内存已超出 - 致命错误。

\let\sa@orig@document\document
Underfull \vbox (badness 10000) has occurred while \output is active []

我在下面添加了一个包含 muthesis.cls 的 overleaf 链接。 https://www.overleaf.com/read/nvgvqpckxyfm