elsa-cas class comma before figures

I am not a latex expert and I am not really familiar with stack exchange, hence I apologise for any possible error. I am writing an article and I am using the els-cas template. I am not able to remove the comma I observe every time I insert a figure (on the upper left side).
Here, a short working example of my code that should reproduce the issue.
As I could not upload one of my figures I chose test as https://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/F%28x%29_%3D_x%5E3_%E2%88%92_9x.PNG/250px-F%28x%29_%3D_x%5E3_%E2%88%92_9x.PNG.

documentclass[a4paper,fleqn]{cas-sc}


usepackage[numbers,longnamesfirst]{natbib}
usepackage{graphicx}
usepackage{float}

usepackage{placeins}

setlength{extrarowheight}{1pt}


begin{document}
FloatBarrier
begin{figure}[h]

centering
includegraphics[width= 0.5textwidth]{test.png}


end{figure}
end{document}

Thank you in advance for your suggestions.