texput.log

This is pdfTeX, Version 3.14159265-2.6-1.40.18 (MiKTeX 2.9.6500 64-bit) (preloaded format=pdflatex 2018.2.11)  22 NOV 2018 19:27
entering extended mode
**citation.tex

! Emergency stop.
<*> citation.tex
                
*** (job aborted, file error in nonstop mode)

 
Here is how much of TeX's memory you used:
 1 string out of 493312
 10 string characters out of 3138908
 53761 words of memory out of 3000000
 3655 multiletter control sequences out of 15000+200000
 3640 words of font info for 14 fonts, out of 3000000 for 9000
 1141 hyphenation exceptions out of 8191
 0i,0n,0p,1b,6s stack positions out of 5000i,500n,10000p,200000b,50000s
!  ==> Fatal error occurred, no output PDF file produced!