E: The repository 'ppa.launchpad.net/bluetooth/bluez/... impish Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
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getting error Ign:7 ppa.launchpad.net/bluetooth/bluez/... impish InRelease
Err:8 ppa.launchpad.net/bluetooth/bluez/... impish Release
404 Not Found [IP: 91.189.95.85 80]
Reading package lists... Done
E: The repository 'ppa.launchpad.net/bluetooth/bluez/... impish Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.