I am using the ArsClasica thesis style, and this is the main code:
\documentclass[10pt,a4paper,twoside,openright,titlepage,fleqn,%
headinclude,,footinclude,BCOR5mm,%
numbers=noenddot,cleardoublepage=empty,%
tablecaptionabove]{scrreprt}
\usepackage[italian,american]{babel}
\usepackage[applemac]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{amsmath,amssymb,amsthm}
\usepackage{varioref}
%\usepackage{biblatex}
\usepackage[style=philosophy-modern,hyperref]{biblatex}
\usepackage{chngpage}
\usepackage{calc}
\usepackage{listings}
\usepackage{graphicx}
\usepackage{subfig}
\usepackage{multicol}
\usepackage{makeidx}
\usepackage{fixltx2e}
\usepackage{relsize}
\usepackage{lipsum}
\usepackage[eulerchapternumbers,subfig,beramono,eulermath,pdfspacing,listings]{classicthesis}
\usepackage{arsclassica}
\input{arsclassica-settings}
\begin{document}
\pagenumbering{roman}
\pagestyle{plain}
%******************************************************************
% Frontmatter
%******************************************************************
\input{FrontBackMatter/Titlepage}
\input{FrontBackMatter/Titleback}
\clearpage
\input{FrontBackMatter/Abstract+Sommario}
\input{FrontBackMatter/Acknowledgements}
\pagestyle{scrheadings}
\clearpage
\input{FrontBackMatter/Contents}
\cleardoublepage
%******************************************************************
% Mainmatter
%******************************************************************
\pagenumbering{arabic}
\input{Chapters/Fundamentals}
\input{Chapters/Code}
% *****************************************************************
% Backmatter
%******************************************************************
\clearpage
\input{FrontBackMatter/Bibliography}
\clearpage
\input{FrontBackMatter/Index}
\end{document}
in the arsclassica-settings:
% ********************************************************************
% arsclassica-settings
% ********************************************************************
% ********************************************************************
% hyperref
% ********************************************************************
\newcommand{\mail}[1]{\href{mailto:#1}{\texttt{#1}}}
% ********************************************************************
% makeidx, multicol
% ********************************************************************
\let\orgtheindex\theindex
\let\orgendtheindex\endtheindex
\def\theindex{%
\def\twocolumn{\begin{multicols}{2}}%
\def\onecolumn{}%
\clearpage
\orgtheindex
}
\def\endtheindex{%
\end{multicols}%
\orgendtheindex
}
\makeindex
% ********************************************************************
% listings
% ********************************************************************
\definecolor{lightergray}{gray}{0.99}
\lstset{language=[LaTeX]Tex,
keywordstyle=\color{RoyalBlue},
basicstyle=\normalfont\ttfamily,
commentstyle=\color{Emerald}\ttfamily,
stringstyle=\rmfamily,
numbers=none,
numberstyle=\scriptsize,
stepnumber=5,
numbersep=8pt,
showstringspaces=false,
breaklines=true,
frameround=ftff,
frame=lines,
backgroundcolor=\color{lightergray}
}
\lstset{ morekeywords=%
{RequirePackage,newboolean,DeclareOption,setboolean,%
ProcessOptions,PackageError,ifthenelse,boolean,%
chapterNumber,sodef,textls,allcapsspacing,%
MakeTextLowercase,orgtheindex,endtheindex,%
@ifpackageloaded,undefined,sfdefault,%
DeclareRobustCommand,spacedallcaps,%
microtypesetup,MakeTextUppercase,lowsmallcapsspacing,%
lowsmallcapsspacing,spacedlowsmallcaps,
spacedlowsmallcaps,lehead,headmark,color,%
headfont,partname,thepart,titleformat,part,
titlerule,chapter,thechapter,thesection,%
subsection,thesubsection,thesubsubsection,%
paragraph,theparagraph,descriptionlabel,titlespacing,%
graffito,lineskiplimit,finalhyphendemerits,%
colorbox,captionsetup,labelitemi,%
myincludegraphics,hypersetup,setlength,%
definecolor,lsstyle,textssc,subsubsection,%
graffito@setup,includegraphics,ifdefined,%
myTitle,textcopyright,myName,lstset,lstnewenvironment,%
setkeys,lst@BeginAlsoWriteFile,contentsname,%
toc@heading,@ppljLaTeX,z@,check@mathfonts,%
sf@size,ptctitle,mtctitle,stctitle,lst@intname,%
@empty,math@fontsfalse,@ppljscTeX,@iwonaTeX,%
@iwonascLaTeX,@ctTeX,tw@,ct@sc,@ctTeX,f@family,%
f@shape,ct@sc,ctLaTeX,ctLaTeXe,@twoe,@sctwoe,%
texorpdfstring,m@th,ctTeX,@mkboth,ProvidesPackage,%
theindex,PackageInfo,PackageWarningNoLine,%
mtifont,mtcindent,@iwonaLaTeX,@ppljTeX,@iwonascTeX,%
rohead,orgendtheindex,@ppljscLaTeX,%
@ifclassloaded,toc@headingbkORrp,backreftwosep,%
backrefalt,backreflastsep,areaset,pnumfont,%
arsincludegraphics,ExecuteOptions,PackageWarning,textcolor,%
MessageBreak,ars@@includegraphics,ifcld@backref,rofoot,formatchapter,%
if@twoside},
commentstyle=\color{Emerald}\ttfamily,%
frame=lines}
\lstset{basicstyle=\normalfont\ttfamily}
\lstset{flexiblecolumns=true}
\lstset{moredelim={[is][\normalfont\itshape]{/*}{*/}}}
\lstset{basicstyle=\normalfont\ttfamily}
\lstset{flexiblecolumns=false}
\lstset{moredelim={[is][\ttfamily]{!?}{?!}}}
\lstset{escapeinside={£*}{*£}}
\lstset{firstnumber=last}
\lstset{moredelim={[is][\ttfamily]{!?}{?!}}}
\DeclareRobustCommand*{\pacchetto}[1]{{\normalfont\ttfamily#1}%
\index{Pacchetto!#1@\texttt{#1}}%
\index{#1@\texttt{#1}}}
\DeclareRobustCommand*{\bibtex}{\textsc{Bib}\TeX%
\index{bibtex@\textsc{Bib}\protect\TeX}%
}
\DeclareRobustCommand*{\amseuler}{\protect\AmS{} Euler%
\index{AmS Euler@\protect\AmS~Euler}%
\index{Font!AmS Euler@\protect\AmS~Euler}}
\lstnewenvironment{code}%
{\setkeys{lst}{columns=fullflexible,keepspaces=true}%
\lstset{basicstyle=\small\ttfamily}%
}{}
\lstset{extendedchars}
\lstnewenvironment{sidebyside}{%
\global\let\lst@intname\@empty
\setbox\z@=\hbox\bgroup
\setkeys{lst}{columns=fullflexible,%
linewidth=0.45\linewidth,keepspaces=true,%
breaklines=true,%
breakindent=0pt,%
boxpos=t,%
basicstyle=\small\ttfamily
}%
\lst@BeginAlsoWriteFile{\jobname.tmp}%
}{%
\lst@EndWriteFile\egroup
\begin{center}%
\begin{minipage}{0.45\linewidth}%
\hbox to\linewidth{\box\z@\hss}
\end{minipage}%
\qquad
\begin{minipage}{0.45\linewidth}%
\setkeys{lst}{frame=none}%
\leavevmode \catcode`\^^M=5\relax
\small\input{\jobname.tmp}%
\end{minipage}%
\end{center}%
}
\newcommand{\omissis}{[\dots\negthinspace]}
\graphicspath{{Graphics/}}
\hyphenation{Robert Bring-hurst DejaVu
Bera Mono Vera Classic-Thesis suite Knuth Zapf}
\newcommand{\meta}[1]{$\langle${\normalfont\itshape#1}$\rangle$}
\lstset{escapeinside={£*}{*£}}
\DeclareRobustCommand*{\miktex}{MiK\TeX%
\index{miktex@MiK\protect\TeX}%
}
\DeclareRobustCommand*{\metafont}{\MF%
\index{METAFONT@\protect\MF}%
}
\DeclareRobustCommand*{\metapost}{\MP%
\index{METAPOST@\protect\MP}%
}
\DeclareRobustCommand*{\texlive}{\TeX{}~Live%
\index{texlive@\protect\TeX{}~Live}%
}
% ********************************************************************
% biblatex
% ********************************************************************
\bibliography{Bibliography}
\defbibheading{bibliography}{%
\cleardoublepage
\manualmark
\phantomsection
\addcontentsline{toc}{chapter}{\tocEntry{\bibname}}
\chapter*{\bibname\markboth{\spacedlowsmallcaps{\bibname}}
{\spacedlowsmallcaps{\bibname}}}}
\renewcommand*{\nameyeardelim}{\addcomma\space}
% ********************************************************************
% other commands
% ********************************************************************
\newcommand{\ita}[1]{%
\begin{otherlanguage*}{italian}#1\end{otherlanguage*}}
\DeclareRobustCommand*{\pkgname}[1]{{\normalfont\sffamily#1}%
\index{Package!#1@\textsf{#1}}%
\index{#1@\textsf{#1}}}
\DeclareRobustCommand*{\envname}[1]{{\normalfont\ttfamily#1}%
\index{Environment!#1@\texttt{#1}}%
\index{#1@\texttt{#1}}}
\DeclareRobustCommand*{\optname}[1]{{\normalfont\ttfamily#1}%
\index{Option!#1@\texttt{#1}}%
\index{#1@\texttt{#1}}}
\DeclareRobustCommand*{\clsname}[1]{{\normalfont\sffamily#1}%
\index{Class!#1@\textsf{#1}}%
\index{#1@\textsf{#1}}}
\DeclareRobustCommand*{\cmdname}[1]{\mbox{\lstinline!\\#1!}%
\index{#1@\texttt{\hspace*{-1.2ex}\textbackslash#1}}}
\DeclareRobustCommand*{\classicthesis}{Classic\-Thesis}
\DeclareRobustCommand*{\arsclassica}{{\normalfont\sffamily ArsClassica}}
\DeclareRobustCommand*{\miktex}{MiK\TeX%
\index{miktex@MiK\protect\TeX}}
\DeclareRobustCommand*{\texlive}{\TeX{}~Live%
\index{texlive@\protect\TeX{}~Live}}
and in Bibliography:
%*******************************************************
% Bibliography
%*******************************************************
%\nocite{*}
\printbibliography
and in Bibliography.bib:
@book{bringhurst:elements,
author = {Bringhurst, Robert},
title = {The Elements of Typographic Style},
publisher = {Hartley \& Marks},
year = {1992},
location = {Point Roberts, Washington, USA}
}
However when I use \cite{bringhurst:elements} it is only citing the keywords, as follow: 
Please help me to change this to a normal author, year citation.
.blgfile. If there is something wrong with your bibliography, complaints should be logged to that file. See also Troubleshooting for biber. – moewe Jan 04 '18 at 22:03.blgfile? – moewe Jan 09 '18 at 09:03