Hi there,
Is it possible to make invisible the image in background in the mobile version?
Thanks for your answer.
Best regards,
Graciane

Hello, yes everything is possible!!
We are committed to help you with any type of support query, however we can't provide extensive help in terms of customizations. In general customizations may look simple but you will require solid knowledge of web technologies and programming skills to do them or hire a professional who can do it for you.

Add this code below to your css/custom.css

@media (max-width: 768px) {
#bg {
display: none;
}
}

Problem solved.