Fatal error: Could not check compatibility between Dompdf\Frame\FrameTreeList::getIterator(): Dompdf\Frame\FrameTreeIterator and IteratorAggregate::getIterator(): Traversable, because class Dompdf\Frame\FrameTreeIterator is not available in C:\xampp\htdocs\backup\převod php hhr\libs\DomPdf\src\Frame\FrameTreeList.php on line 31