Why pdfLatex compilation fails after I add a footnote with protected citation?

Question

I recently started learning LaTeX for the sheer beauty of it. As much as my document looks pretty my code is ugly as hell. I'm using Kile on Windows 10, and BiblateX with BibteX backend (dropped the idea of using biber after it didn't work; I tried everything suggested here).

Here's what happend; I added another bibliography entry (had 8 before, even one in another footnote and it worked fine) in a footnote and pdfLatex gave error "finished with exit code1". After working on the problem for a while, found out that if I suppress \printbibliography (by adding %) it works fine again and even prints correct citation number [9] in the footnote. I use the pdfLaTex>BibTex>pdfLaTex sequence. I can't figure out what's wrong or even where the problem is (footnote? citation? \printbibliography command? or the .bib file?)

Here's my MWE;

\documentclass{book}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{textcomp}
\usepackage{courier}
\usepackage[bottom]{footmisc}
\usepackage{xcolor,xfrac,lmodern,graphicx,mathtools}
\usepackage{etoolbox,fancyhdr,float,wrapfig,amsmath}
\everymath{\displaystyle}
\apptocmd{\thebibliography}{\csname phantomsection\endcsname\addcontentsline{toc}{chapter}{\bibname}}{}{}
\graphicspath{{images/}}
\usepackage[font={rm,footnotesize,sl,color={darkgray}},labelfont={bf,color=black}]{caption}
\usepackage[font={rm,footnotesize,it}]{subcaption}
 \usepackage[a4paper,width=150mm,top=25mm,bottom=25mm]{geometry}
 \usepackage[style=nature,sorting=none,bibencoding=ascii,backend=bibtex]{biblatex}
 \addbibresource{refer.bib}
 \usepackage[nottoc]{tocbibind}
 \setlength{\parskip}{1em}
 \renewcommand{\thefootnote}{\alph{footnote}}
 \emergencystretch=1em
 \pagestyle{plain}
 \begin{document}
 \frontmatter 
\tableofcontents
\mainmatter
This is a test sentence.
\footnote{Obviously fake footnote.\protect\cite{tape}}
\renewcommand\bibname{References}
\printbibliography[heading=bibintoc]
\end{document}

I would appreciate any help. For sake of brevity I'm adding four entries of refer.bib file. I just noticed that first three @Article entries appear blue while the rest are red. What does this mean?

@Article{g,
author = {Jonas Gienger and Nikolai Severin and J\"{u}rgen P. Rabe and  Igor M. Sokolov},
title = {Reconstructing Interaction Potentials in Thin Films from   Real-Space Images},
journal = {arxiv},
year = {2015},
  }
@Article{sev,
author = {Nikolai Severin and Jonas Gienger and V. Scenev and P. Lange and Igor M. Sokolov and J\"{u}rgen P. Rabe},
title = {Nanophase Separation in Monomolecularly Thin Water-Ethanol Films Controlled by Graphene},
journal = {Nano Letters},
year = {2015},
}
 @Article{NG,
  author = {K. S. Novoselov and A. K. Geim and S. V. Morozov and D. Jiang and Y. Zhang and S. V. Dubonos and I. V. Grigorieva and A. A. Firsov},
 title = {Electric Field Effect in Atomically Thin Carbon Films},
 journal = {Sceince},
  year = {2004},
}
 @Article{tape,
 author = {Carlos G. Camara and Juan V. Escobar and Jonathan R. Hird1 and Seth J. Putterman},
 title = {Correlation between nanosecond X-ray flashes and stick–slip friction in peeling tape},
  journal = {Nature Letters},
 year = {2008},
  }