I want to add an image in a two-column paper in the following manner.

I have tried using
\begin{figure*}
\centering
...
\end{figure*}
but there's an error: Output loop---100 consecutive dead cycles. I'm new to Latex so any help would be appreciated.
figure*can not be placed at the bottom in the default code. Several packages add this feature though see https://texfaq.org/FAQ-2colfloat – David Carlisle Jul 17 '18 at 06:47