Empty bibliography on input line!

Question

I was trying to make the first quote when I noticed the error "Empty bibliography on input line!" that since I left the file .bib empty, seemed normal to me. But since I entered references on the file, this error keeps popping up.

This is the project I’m working on:

    \documentclass[12pt, twoside]{book}
\usepackage{booktabs}
\usepackage{caption}
\usepackage{graphicx}
\usepackage{blindtext}
\usepackage{float}
\usepackage[style=numeric,backend=biber,]{biblatex}
\addbibresource{mybib.bib}

\begin{document}

\input{Title}
\clearpage
\input{Abstract}
\clearpage
\input{Introduction}
\addcontentsline{toc}{chapter}{Introduction}
\clearpage
\input{Coclusion}
\addcontentsline{toc}{chapter}{Coclusion}
\printbibliography
\end{document}

and this is the bibliography:

    @book{,
      title= {The Post-traumatic Vegetative State.},
      author= {Giuliano Dolce, M.D.,Leon Sazbon, M.D,},
      year= {2002},
      isbn={3131300713}
      publisher= {Thieme},
      keywords = {PT-VS}
    }

Overleaf gave me the following errors:

The file '/compile/output. Bcf' contains no citations! Empty bibliography on input line 22.