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-nissan-altima-2-5-s-sanford-me-1888571/&choe=UTF-8): Could not find image file