Warning: DOMDocument::load(): I/O warning : failed to load external entity "file:/C:/Wamp64/www/xades/AttachedDocumentSigned.xml" in C:\Wamp64\www\xades\debug_digest_values.php on line 5

Fatal error: Uncaught Error: Call to a member function C14N() on null in C:\Wamp64\www\xades\debug_digest_values.php:9 Stack trace: #0 {main} thrown in C:\Wamp64\www\xades\debug_digest_values.php on line 9