My error is slightly similar:
E:can not open /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_focal-backports_InRelease - fopen (13: Permission denied), E:The package lists or status file could not be parsed or opened.
My error is slightly similar:
E:can not open /var/lib/ apt/lists/ archive. ubuntu. com_ubuntu_ dists_focal- backports_ InRelease - fopen (13: Permission denied), E:The package lists or status file could not be parsed or opened.