Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromisorInterface' not found in /home/malvernj/public_html/wp-content/plugins/googleanalytics/lib/analytics-admin/vendor/guzzlehttp/promises/src/EachPromise.php:9
Stack trace:
#0 {main}
thrown in /home/malvernj/public_html/wp-content/plugins/googleanalytics/lib/analytics-admin/vendor/guzzlehttp/promises/src/EachPromise.php on line 9