Fatal error: Uncaught Error: Class "ParagonIE\Halite\Asymmetric\PublicKey" not found in C:\Apache24\htdocs\cms_upgrade\vendor\paragonie\halite\src\Asymmetric\EncryptionPublicKey.php:19 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\paragonie\halite\src\Asymmetric\EncryptionPublicKey.php on line 19