mPDF error: IMAGE Error (https://maps.googleapis.com/maps/api/staticmap?center=Kojetick√°%201024/,%20277%2011%20Neratovice&zoom=14&size=400x300&markers=color:black%7CKojetick√°%201024/,%20277%2011%20Neratovice): Error parsing image file - image type not recognised, and not supported by GD imagecreate