I'm using Ubuntu 20.04.4 LTS version. Somehow from today morning I'm receiving the below traceback while running apt update command
sudo apt update
[sudo] password for testuser:
Hit:1 http://in.archive.ubuntu.com/ubuntu focal InRelease
Hit:2 http://in.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:3 https://repo.skype.com/deb stable InRelease
Hit:4 http://in.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:5 https://dl.google.com/linux/chrome/deb stable InRelease
Hit:6 http://ppa.launchpad.net/atareao/atareao/ubuntu focal InRelease
Get:7 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Hit:8 http://ppa.launchpad.net/bitseater/ppa/ubuntu focal InRelease
Fetched 114 kB in 2s (73.9 kB/s)
E: Read error - read (5: Input/output error)
Traceback (most recent call last):
File "/usr/lib/cnf-update-db", line 27, in <module>
col.create(db)
File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 95, in create
self._fill_commands(con)
File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 141, in _fill_commands
raise subprocess.CalledProcessError(returncode=sub.returncode,
subprocess.CalledProcessError: Command '/usr/lib/apt/apt-helper cat-file /var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_focal_universe_cnf_Commands-amd64' returned non-zero exit status 100.
Reading package lists... Done
E: Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/lib/command-not-found/ -a -e /usr/lib/cnf-update-db; then /usr/lib/cnf-update-db > /dev/null; fi'
E: Sub-process returned an error code
Please let me know what is the issue here