Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromiseInterface' not found in /home/malvernj/public_html/wp-content/plugins/googleanalytics/lib/analytics-admin/vendor/guzzlehttp/promises/src/RejectedPromise.php:11 Stack trace: #0 {main} thrown in /home/malvernj/public_html/wp-content/plugins/googleanalytics/lib/analytics-admin/vendor/guzzlehttp/promises/src/RejectedPromise.php on line 11