Fatal error: Uncaught Error: Interface "GuzzleHttp\ClientInterface" not found in C:\Apache24_x64\htdocs\__cms\vendor\guzzlehttp\guzzle\src\Client.php:25 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\__cms\vendor\guzzlehttp\guzzle\src\Client.php on line 25