mPDF error: IMAGE Error (http://maps.googleapis.com/maps/api/staticmap?center=49.0547076706,17.119951266&key=AIzaSyADY15nwq-IdJ3bqLqdQKYCy4WNOGJIeDQ&zoom=11&size=1000x200&markers=color:pink%7Clabel:%7C49.0547076706,17.119951266): Could not find image file