Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromisorInterface' not found in /home/malvernj/public_html/wp-content/plugins/googleanalytics/lib/analytics-admin/vendor/guzzlehttp/guzzle/src/Pool.php:24 Stack trace: #0 {main} thrown in /home/malvernj/public_html/wp-content/plugins/googleanalytics/lib/analytics-admin/vendor/guzzlehttp/guzzle/src/Pool.php on line 24