(paintutils.drawImage) , Expected image, x, y

Hello,
I need help, I learn an old post for this question but my problem persists :

http://image.noelshack.com/fichiers/2017/48/6/1512244377-probleme-1.png
http://image.noelshack.com/fichiers/2017/48/6/1512244377-probleme-2.png
http://image.noelshack.com/fichiers/2017/48/6/1512244377-probleme-3.png

Can you help me plz ?

If you ask paintutils.loadImage() to open an image that doesn't exist, instead of erroring it'll just return nil. This later leads to paintutils.drawImage() erroring instead.

http://image.noelsha...-probleme-4.png
http://image.noelsha...-probleme-5.png

After changes I solved the problem here are the pictures.
http://image.noelsha...me-resolu-1.png
http://image.noelsha...me-resolu-2.png
http://image.noelsha...me-resolu-3.png
It was the name of the first image, it should not have a number.