mPDF error: IMAGE Error (https://zxing.org/w/chart?cht=qr&chs=350x350&chld=L&choe=UTF-8&chl=https://www.newenglandautomall.com/cars-for-sale/2020-audi-q5-premium-quattro-manchester-nh-1889261/&choe=UTF-8): Could not find image file