Docker build ERROR

My provider has made a data transfer to new servers. In the settings, I changed the ip addresses to new ones and can connect. I also successfully manage docker containers through the Wappler interface. However, when I try to deploy the application, I get the following error:

What could be the reason for this error?

Maybe internet connectivity or dns settings? Seems simple domain name resolution is not working.

The internet connection is stable. Moreover, I calmly manage containers remotely from the Wappler. I can stop them and start them. But I need to rebuild them. DNS is configured correctly

What does this address mean: https://registry-1.docker.io/v2/ ?

Is there a way to completely reinstall portainer/traefik from the Wappler?