Fatal error: Uncaught Error: Class "ParagonIE\Halite\Config" not found in C:\Apache24\htdocs\cms_upgrade\vendor\paragonie\halite\src\Symmetric\Config.php:31 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\paragonie\halite\src\Symmetric\Config.php on line 31