mPDF error: IMAGE Error (http://maps.googleapis.com/maps/api/staticmap?center=49.9130789678,15.3913908016&key=AIzaSyADY15nwq-IdJ3bqLqdQKYCy4WNOGJIeDQ&zoom=11&size=1000x200&markers=color:pink%7Clabel:%7C49.9130789678,15.3913908016): Could not find image file