Fatal error: Uncaught Error: Interface 'GuzzleHttp\ClientInterface' not found in /home/kubalos2/public_html/testtestowy/vendor/guzzlehttp/guzzle/src/Client.php:25 Stack trace: #0 {main} thrown in /home/kubalos2/public_html/testtestowy/vendor/guzzlehttp/guzzle/src/Client.php on line 25