I'm already installed docker, then i install a kubernetes but docker service cannot is not working. Here i'm Attaching error images for your reference.
Docker Version:-docker-ce.x86_64 18.05.0.ce-3.fc26
Docker service status
Docker service status-2
If i'm creating kubernetes pod container, its not created and showing some error like this.
Here i'm Attaching error images for your reference. Kubernetes pod container creating Error
Kubernetes pod container creating Error-2
The docker installation should work. Since it is not clear to me with the info you provided, I just suggest this https://docs.docker.com/install/#supported-platforms.
The error for pod creation says your fedora.yaml contains invalid pod configuration in line 7 that is not as expected. You can see sample-pod-template