Fatal error: Uncaught Error: Interface "GuzzleHttp\ClientInterface" not found in /home/customer/www/londonfencingclub.co.uk/public_html/vendor/guzzlehttp/guzzle/src/Client.php:25 Stack trace: #0 {main} thrown in /home/customer/www/londonfencingclub.co.uk/public_html/vendor/guzzlehttp/guzzle/src/Client.php on line 25