mPDF error: IMAGE Error (https://chart.googleapis.com/chart?chs=300x300&cht=qr&chl=https://newenglandautomall.com/cars-for-sale/2013-honda-cr-v-ex-l-turner-me-1850371/&choe=UTF-8): Error parsing image file - image type not recognised, and not supported by GD imagecreate