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Seems you've added a PPA from noobslab, remove it. That's what's causing your problem.
W:The repository 'http://ppa.launchpad.net/noobslab/deepin-sc/ubuntu xenial Release' does not have a Release file., W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use., W:See apt-secure( manpage for repository creation and user configuration details., E:Failed to fetch http://ppa.launchpad.net/noobslab/deepin-sc/ubuntu/dists/xenial/main/binary-amd64/Packages 404 Not Found, E:Some index files failed to download. They have been ignored, or old ones used instead.
couldn't fetch the package cache information lists.