Issue #3308486 Fixed error with method call

modules/shipping/src/EntitySync/FeedPostOrderFulfillmentDataClient.php

@@ -168,7 +168,7 @@ class FeedPostOrderFulfillmentDataClient implements EntitySyncClientInterface {
    */
   public function fetchFeedUpdates(OperationInterface $operation) {
     $feed = $this->feedsApi->getFeed(
-      $operation->get(OperationField::REMOTE_ID)->first()->getValue['value']
+      $operation->get(OperationField::REMOTE_ID)->first()->getValue()['value']
     );
 
     $remote_state = $feed->getProcessingStatus();