Fatal error: Uncaught Error: Interface "Psr\Http\Client\ClientExceptionInterface" not found in C:\Apache24\htdocs\cms_upgrade\vendor\psr\http-client\src\RequestExceptionInterface.php:14 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\psr\http-client\src\RequestExceptionInterface.php on line 14