Error installing docker in ubuntu 20.04

Im using Ubuntu 20.04 LTS now… and when im installing docker again (in 18.04 worked perfect)
this error is shown, and docker dont work:

Process: 61486 ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock (code=exited, status=1/FAILURE)
Main PID: 61486 (code=exited, status=1/FAILURE)

can someone help me please?

Thanks!!!