How can I change the picture for a contact person in Zoho Books

How can I change the picture for a contact person in Zoho Books

Today I was adding a new contact person to an existing customer. When I was done entering his info the new contact person was displaying an image off the King from Burger King with sunglasses. (See attached screenshot)
Where is this image coming from and how can I remove the burger king image from this contact?

The portal was never activated for this customer and is still disabled because I don't want to embarrass this customer.