Not getting Standard Citations (ACM Type)

I am not getting standard citations in my original document but I am getting the citations on other project on online overleaf editor. I can’t figure out the error but I am able to reproduce my problem.

My code is:

documentclass[manuscript,screen]{acmart}
usepackage[utf8]{inputenc}
usepackage[T1]{fontenc}
usepackage{listings}
input{solidity-highlighting.tex}
usepackage[colorinlistoftodos]{todonotes}
usepackage{rotating}
usepackage{array, makecell}
renewcommandrotheadgape{}
usepackage{xparse}
NewExpandableDocumentCommandmcc{O{1}m}
    {multicolumn{#1}{>{bfseriessmall}c|}{#2}}

usepackage{lipsum} 



AtBeginDocument{%
  providecommandBibTeX{{%
    normalfont Bkern-0.5em{scshape ikern-0.25em b}kern-0.8emTeX}}}


setcopyright{acmcopyright}
copyrightyear{2020}
acmYear{2020}
acmDOI{10.1145/1122445.1122456}

begin{document}
title{A Survey on the Tools Support and Vulnerability Detection in Smart Contracts}


author{A1}
authornote{}
email{}
%orcid{}
author{A2}
authornotemark{}
email{}
affiliation{
  institution{}

}
%renewcommand{shortauthors}{Trovato and Tobin, %et al.}
begin{abstract}
 Testing The abstract
end{abstract}
begin{CCSXML}
<ccs2012>
<concept>
<concept_id>10002978.10003022</concept_id>
<concept_desc>Security and privacy~Software and application security</concept_desc>
<concept_significance>500</concept_significance>
</concept>
<concept>
<concept_id>10002944.10011122.10002945</concept_id>
<concept_desc>General and reference~Surveys and overviews</concept_desc>
<concept_significance>500</concept_significance>
</concept>
</ccs2012>
end{CCSXML}

ccsdesc[500]{ Testing Testing}
ccsdesc[500]{Testing Testings}



%%
%% Keywords. The author(s) should pick words that accurately describe
%% the work being presented. Separate the keywords with commas.
keywords{Testing Keywords}

maketitle

section{Introduction}
Testing Introduction cite{1} cite{2} cite{3} cite{4} cite{5} cite{6} cite{7} cite{8} cite{9} cite{10} cite{11} cite{12} cite{13} cite{14} cite{15} cite{16} cite{17} cite{18}
cite{19} cite{20}

bibliographystyle{ACM-Reference-Format}
bibliography{sourcefile-bib}


end{document}
endinput

My output is:

But the other project is giving me following citations

My project files can be retrieved from:
Latex.zip

Somebody please guide me.

Zulfi.