Issue have problem with update

[Qusay]

Server operating system version

Debian 10

Plesk version and microupdate number

18.0.51

Error: Unable to get packages list: 2023-04-20 01:44:13 INFO: pum is called with arguments: ['--list', '--repo-info', '--json'] 2023-04-20 01:44:17 ERROR: W:Skipping acquire of configured file 'all/binary-amd64/Packages' as repository 'Index of /pool/WPB_18.0.51_64 all InRelease' doesn't support architecture 'amd64', W:GPG error: https://packagecloud.io/Keymetrics/pm2/debian buster InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D7CC7AB1473937D1, E:The repository 'https://packagecloud.io/Keymetrics/pm2/debian buster InRelease' is not signed. 2023-04-20 01:44:17 ERROR: Exited with returncode 1.

and if i use this command in ssh
apt-get update or sudo apt-get update

Get:15 https://packagecloud.io/Keymetrics/pm2/debian buster InRelease [23.6 kB]
Err:15 https://packagecloud.io/Keymetrics/pm2/debian buster InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D7CC7AB1473937D1
Reading package lists... Done
N: Ignoring file 'plesk.list.ai_back' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Skipping acquire of configured file 'all/binary-amd64/Packages' as repository 'http://autoinstall.plesk.com/pool/WPB_18.0.51_64 all InRelease' doesn't support architecture 'amd64'
W: GPG error: https://packagecloud.io/Keymetrics/pm2/debian buster InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D7CC7AB1473937D1

E: The repository 'https://packagecloud.io/Keymetrics/pm2/debian buster 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.

 

[Peter Debik]

PackageCloud is not a Plesk service. You'll need to either contact them on the correct public key or import their key to your system or omit signature checking upon this installation (update).

 

[Qusay]

PackageCloud is not a Plesk service. You'll need to either contact them on the correct public key or import their key to your system or omit signature checking upon this installation (update).

How can I do this please

 

[GwenDragon]

wget -O - https://packagecloud.io/Keymetrics/pm2/gpgkey | sudo apt-key add -