apt-get update issue

[Crxaw]

FAILED: apt-get -y -o Dpkg::Options::=--force-confdef -o Dpkg::Options::=--force-confnew install nsd ldnsutils openssh-client

Reading package lists... Building dependency tree... Reading state information... openssh-client is already the newest version (1:8.2p1-4ubuntu0.11). The following additional packages will be installed: libfstrm0 libldns2 libprotobuf-c1 The following NEW packages will be installed: ldnsutils libfstrm0 libldns2 libprotobuf-c1 nsd 0 upgraded, 5 newly installed, 0 to remove and 0 not upgraded. Need to get 704 kB of archives. After this operation, 3,205 kB of additional disk space will be used. Err:1 http://archive.ubuntu.com/ubuntu focal/universe amd64 libfstrm0 amd64 0.6.0-1 Temporary failure resolving 'archive.ubuntu.com' Ign:2 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 libprotobuf-c1 amd64 1.3.3-1ubuntu0.1 Err:3 http://archive.ubuntu.com/ubuntu focal/universe amd64 nsd amd64 4.1.26-1build1 Temporary failure resolving 'archive.ubuntu.com' Err:2 http://security.ubuntu.com/ubuntu focal-updates/universe amd64 libprotobuf-c1 amd64 1.3.3-1ubuntu0.1 Temporary failure resolving 'archive.ubuntu.com' Err:4 http://archive.ubuntu.com/ubuntu focal/universe amd64 libldns2 amd64 1.7.0-4.1ubuntu1 Temporary failure resolving 'archive.ubuntu.com' Err:5 http://archive.ubuntu.com/ubuntu focal/universe amd64 ldnsutils amd64 1.7.0-4.1ubuntu1 Temporary failure resolving 'archive.ubuntu.com' E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/universe/f/fstrm/libfstrm0_0.6.0-1_amd64.deb Temporary failure resolving 'archive.ubuntu.com' E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/universe/p/protobuf-c/libprotobuf-c1_1.3.3-1ubuntu0.1_amd64.deb Temporary failure resolving 'archive.ubuntu.com' E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/universe/n/nsd/nsd_4.1.26-1build1_amd64.deb Temporary failure resolving 'archive.ubuntu.com' E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/universe/l/ldns/libldns2_1.7.0-4.1ubuntu1_amd64.deb Temporary failure resolving 'archive.ubuntu.com' E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/universe/l/ldns/ldnsutils_1.7.0-4.1ubuntu1_amd64.deb Temporary failure resolving 'archive.ubuntu.com' E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?