Fatal error: Uncaught Error: Interface 'GuzzleHttp\ClientInterface' not found in /home/Filipie/public_html/mikolgallery/forum/phpBB3/vendor/guzzlehttp/guzzle/src/Client.php:26 Stack trace: #0 {main} thrown in /home/Filipie/public_html/mikolgallery/forum/phpBB3/vendor/guzzlehttp/guzzle/src/Client.php on line 26