Cannot upgrade my connector..

Hi,

any ideas how to fix this? (systemd Service - Ubuntu)

Reading package lists... Done

W: GPG error: https://packages.twingate.com/apt InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5C363F09A9174A9E

E: The repository 'https://packages.twingate.com/apt InRelease' is not signed.

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.

N: Missing Signed-By in the sources.list(5) entry for 'https://packages.twingate.com/apt'

Reading package lists...

Building dependency tree...

Reading state information...

twingate-connector is already the newest version (1.78.0).

0 upgraded, 0 newly installed, 0 to remove and 142 not upgraded.