mPDF error: IMAGE Error (http://maps.googleapis.com/maps/api/staticmap?center=50.3524905762,15.9082042566&key=AIzaSyADY15nwq-IdJ3bqLqdQKYCy4WNOGJIeDQ&zoom=11&size=1000x200&markers=color:pink%7Clabel:%7C50.3524905762,15.9082042566): Could not find image file