I am trying to create a cluster in AWS Amazon Elastic Container Service, so a clicked on create cluster button, entered “defaut” as name and default namespace and with AWS Fargate (serveless) ticked, and when I click create button, I have the following error message:
There was an error creating cluster default.
Stack [Infra-ECS-Cluster-default-7505d64a] already exists

For my point of view, it means that this cluster already exists, However, when I try to inspect the created cluster, the drop box with existing cluster is empty. Can you help me ?