Graphviz image loading error

Hello I created a dot graphique by usinng images on a old laptop and the pdf render was good but when I wanted to try on my new computer this message appere on screen while i touched to nothing can somebody help me please.

Please show the input file and the command line you used

Uploading: aatrox.jpg…
Uploading: graphe.dot…

dot -Tpdf graphe.dot -o graphe.png

Uploading: aatrox.jpg…
Uploading: graphe.dot…

digraph G {

aa[label = " " ,image= “aatrox.png”,shape=none];

aa->zy

}
dot -Tpdf graphe.dot -o graphe.png

The above posting mentions (but does not include) aatrox.jpg, while the input file references aatrox.png (note the different suffix)
Does the file aatrox.png exist and is it the same directory as the input file?

I think the bigger problem here is:

… -Tpdf … -o ….png

You will find better luck pairing -Tpdf with a .pdf output or -Tpng with a .png output.