I used a template from overleaf, I can not figure out which setting made this problem happen, so here is is the document. And the problem is in the file:
Chapters/Chapter1.tex
on line 30:
\caption{Related work \label{table:related_work}} \\
I tried:
\setcounter{table}{0}
But it doesn't seem to make any difference.

1is the chapter number. Addingrenewcommand{\thetable}\arabic{table}to your preamble should do the trick. – Bernard Jan 04 '18 at 12:39