Error deploying service: ECS Deployment Circuit Breaker was triggered

Hello,

I am a new user in AWS and trying to deploy a docker image with a container. The docker image contains Ubuntu 20 and some relevant libraries.

I created a task definition with 2 CPUs and 4 GBs of memory.

When I try to create the service I get the error: "Resource handler returned message: "Error occurred during operation 'ECS Deployment Circuit Breaker was triggered'." (RequestToken: 50c5f116-697c-94c8-4a02-66f0576d6b95, HandlerErrorCode: GeneralServiceException)"

If I turn off the circuit breaker, the deployment cannot succeed, it waits to finish.

The screenshots are:

As far as I can see from the logs, the Ubuntu starts and it can start the openssh server.

In one of the posts, it is said that the problem can be the environmental variables.

Where can be the problem?

Thank you.

Best regards, Mert