кальмар вмешивается в apt-get?

Недавно я установил кальмара вместе с Dan's Guardian. С тех пор, как я их запустил, я получаю ошибки, когда пытаюсь запустить apt-get update. Ошибки выглядят так: W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-updates_restricted_source_Sources Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-updates_multiverse_source_Sources Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-updates_restricted_binary-amd64_Packages Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-updates_multiverse_binary-amd64_Packages Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-updates_restricted_binary-i386_Packages Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-updates_multiverse_binary-i386_Packages Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-security_restricted_source_Sources Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-security_universe_source_Sources Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-security_multiverse_source_Sources Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-security_restricted_binary-amd64_Packages Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-security_multiverse_binary-amd64_Packages Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-security_restricted_binary-i386_Packages Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-security_multiverse_binary-i386_Packages Hash Sum mismatch

Я запустил ubuntu 14.04. У кого-нибудь есть идея, как это исправить? `