mPDF error: IMAGE Error (http://maps.googleapis.com/maps/api/staticmap?center=50.3525461973,15.9081640234&key=AIzaSyADY15nwq-IdJ3bqLqdQKYCy4WNOGJIeDQ&zoom=11&size=1000x200&markers=color:pink%7Clabel:%7C50.3525461973,15.9081640234): Could not find image file