Fatal error: Uncaught Error: Class "setasign\SetaPDF2\Exception" not found in D:\Apache24\htdocs\vendor\setasign\setapdf-core\library\SetaPDF\NotImplementedException.php:21 Stack trace: #0 {main} thrown in D:\Apache24\htdocs\vendor\setasign\setapdf-core\library\SetaPDF\NotImplementedException.php on line 21