mPDF error: IMAGE Error (https://maps.googleapis.com/maps/api/staticmap?center=Svatovítská%20543//5/,%20160%2000%20Praha&zoom=14&size=400x300&markers=color:black%7CSvatovítská%20543//5/,%20160%2000%20Praha): Error parsing image file - image type not recognised, and not supported by GD imagecreate