mPDF error: IMAGE Error (http://maps.googleapis.com/maps/api/staticmap?center=50.670034432533,14.103060744286&key=AIzaSyADY15nwq-IdJ3bqLqdQKYCy4WNOGJIeDQ&zoom=11&size=1000x200&markers=color:pink%7Clabel:%7C50.670034432533,14.103060744286): Could not find image file