Err http://archive.ubuntu.com/ubuntu bionic-security/universe DEP-11 64x64 Icons Hash Sum mismatch Fetched 42.2 MB in 6s (6574 kB/s) Failed to update the package cache: Some files could not be downloaded: E:Failed to fetch copy:/home/andrei/.cache/snapcraft/stage-packages/apt/22a57eaf9c51f344182f55b1a3e19fc331a464fdf25de5d9f405bd5982c9b45687c89983faafb9e6b46fa3d84441fbc6/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_bionic-security_universe_dep11_icons-48x48.tar.gz Hash Sum mismatch E:Some index files failed to download. They have been ignored or old ones used instead. Check that the sources on your host are configured correctly.
I found a solution, but it did not help me
sudo rm -rf /var/lib/apt/lists/* sudo apt-get update