An unknown error

I cannot locate the error here. Below I give the error. This is a critical tex file for me to be compiled, please help.

documentclass{article}

%usepackage{mathabx}

%usepackage{unicode-math}

usepackage{amssymb,amsmath}
usepackage{accents}

usepackage{tikz-cd}

%usepackage{fontspec}

usepackage[no-math]{fontspec}
%usepackage{unicode-math}
%%letcircundefined
%%letdiamondundefined
%letbulletundefined
%%letringundefined
%letemptysetundefined
%letownsundefined


%usepackage{mathabx}


%usepackage{xypic}

usepackage[czech]{babel}
usepackage{mypackage}
%usepackage[utf8]{inputenc}

newcommand{pullbackcorner}[1][dl]{save*!/#1-1pc/#1:(1,-1)@^{|-}restore}
%usepackage[all]{xy}
%newfontfamilyngg{NewGardiner}
% usepackage{pgffor}

usepackage{babyloniannum}
%setfont{NewGardiner}
newfontfamilyngg{Segoe UI Historic}[Ligatures=TeX]

%newfontfamilynggg{Egyptian Hieroglyphs}[Ligatures=TeX]

%  Scale=MatchUppercase,
%  Script={Egyptian Hieroglyphs}]

  %UprightFeatures={Ligatures=Common}]


%renewcommand{theenumi}{roman{enumi}--arabic{enumi}}
%newcommand{stheenumm}{babyloniannum{1}}

%newcommand{theenumi}{roman{enumi}--arabic{enumi}--babyloniannum{enumi}}
MakeRobustbabyloniannum
MakeRobusthgnum
usepackage{enumitem}

ExplSyntaxOnmakeatletter
cs_new_protected:Npn @moduloitem #1
  {
   ngg
    char
     int_eval:n
      {
        int_mod:nn{int_use:c{#1}}{modulolength}
        +
        exp_args:Noint_from_hex:n{modulostart}
      }
  }
newcommandmoduloitem[1]{@moduloitem{c@#1}}
newcommandmodulostart{13000}   %adapt
newcommandmodulolength{1000}      %adapt
AddEnumerateCounter{moduloitem}{@moduloitem}{AA}
ExplSyntaxOff
%renewcommand{theenumi}{roman{enumi}--arabic{enumi}--!!!!!babyloniannum{value{enumi}}!!!--{nggsymbol{"thevalue{nw}}}}
%renewcommand{theenumi}{nggsymbol{"thevalue{stepcounter{nw}}}}


%usepackage{mathabx}

%RequirePackage{unicode-math}

%RequirePackage{unicode-math}

begin{document}
$ggg$
%showbabyloniannum

%renewcommand{theenumi}{roman{enumi}--arabic{enumi}--babyloniannum{enumi}}

% xymatrix{A ar[r] &B}

%      $$
%  xymatrix@=3pc{
%    & & D 
%    B ar[r]ar@/^/[rru]^{h} & P ar[ru] pullbackcorner & 
%    A ar [u]^f ar[r]_g & C ar[u]ar@/_/[ruu]_{k} &
%  }
%  $$


underline{motto:}{ každý den $pm$ nový princip }hfill{$square$}
bigskip
bigskip
% begin{enumerate}[ label=roman{enumi}--arabic{enumi}--!!!!!babyloniannum{value{enumi}}!!!--largenggsymbol{numexpr "13000+value{enumi}}--hgnum{theenumi}--moduloitem{enumi}]

 begin{enumerate}[ label=roman{enumi}--arabic{enumi}--!!!!!babyloniannum{value{enumi}}!!!--hgnum{theenumi}--moduloitem{enumi}]

  item rozhodovat se na hraně zajímavého
  item *vždycky to tam máš (data v matematice)
  item svoboda a volnost
  deftmp{j}
  item if tmp j cfi vbox{hbox{Two lines}hbox{of type.}}

newwritejhfile
openoutjhfile=test.jh
newcommand{triplex}{XXX}
writejhfile{test triplex test}

newcommand{demoletter}[1]{{setlength{fboxsep}{-fboxrule}fbox{phantom{#1}}}}

%demoletter{O}demoletter{n}demoletter{e}
%demoletter{l}demoletter{i}demoletter{n}demoletter{e}demoletter{.}




  item teorie množin (a někdy i další) je manipulace s objekty "ode zdi ke zdi" a jejich sledování
  item nějak to být musí
  item všechno je skoro tak nejlepší a nejbohatší, jak to být může
  item všechno lze rozvrstvit do podúrovní
  item být ve středu vyprávění a ne
end{enumerate}
end{document}

ERROR

Command Line:   D:ProgramFilesMikTexNEWmiktexbinx64xelatex.exe --interaction=errorstopmode --synctex=-1 "ideje36.tex"
Startup Folder: C:Usershynek0DesktopTH0dipl

xelatex: warning: running with administrator privileges
This is XeTeX, Version 3.14159265-2.6-0.999991 (MiKTeX 2.9.7050 64-bit)
entering extended mode
(ideje36.tex
LaTeX2e <2018-12-01>
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(D:ProgramFilesMikTexNEW3tex/latex/amsfontsamssymb.sty
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(D:ProgramFilesMikTexNEW3tex/latex/amsmathamsmath.sty
For additional information on amsmath, use the `?' option.
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(D:ProgramFilesMikTexNEW3tex/latex/amsmathamsgen.sty))
(D:ProgramFilesMikTexNEW3tex/latex/amsmathamsbsy.sty)
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! Undefined control sequence.
l.115 xdef@fontenc@load@list{@fontenc@load@list
                                                  
? 

! Emergency stop.
l.115 xdef@fontenc@load@list{@fontenc@load@list
                                                  
No pages of output.

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 PDFLaTeX Compilation Report (Pages: 0)

 Errors: 2   Warnings: 0   Bad Boxes: 0
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