mPDF error: IMAGE Error (https://chart.googleapis.com/chart?chs=300x300&cht=qr&chl=https://newenglandautomall.com/cars-for-sale/2015-land-rover-lr2-hse-lux-east-providence-ri-1850562/&choe=UTF-8): Error parsing image file - image type not recognised, and not supported by GD imagecreate