Could not connect to 172.17.0.1:3142 (172.17.0.1). - connect (111: Connection refused)

Please, could you assist me in finding a solution. I’ve uninstalled Docker and tried to reinstall it. but can’t. How do I resolve this problem?

Port 3142 is the port of APT-Cacher and your container is configured to access it on the default Docker gateway. Which means APT-Cacher has to run on your host machine.