Upgrade Fehler mit 1.4.6

i-MSCP - internet Multi Server Control Panel (1.4.6)
┌─────────────────────────i-MSCP Installer Dialog────────────────────────────┐
│ [ERROR] │
│ │
│ Error while performing step: │
│ │
│ Processing APT repositories if any │
│ │
│ Error was: │
│ │
│ autoinstaller::Adapter::DebianAdapter::_processAptRepositories: Warning: │
│ apt-key output should not be parsed (stdout is not a terminal) │
│ gpg: failed to start the dirmngr '/usr/bin/dirmngr': No such file or │
│ directory │
│ gpg: connecting dirmngr at '/tmp/apt-key-gpghome.8QK0L3wkCc/S.dirmngr' │
│ failed: No such file or directory │
│ gpg: keyserver receive failed: No dirmngr │
│ │
│ Please have a look at http://i-mscp.net/forum if you need help. │
│ │
├────────────────────────────────────────────────────────────────────────────┤
│ < Ok > │
└────────────────────────────────────────────────────────────────────────────┘
[ERROR] autoinstaller::Adapter::DebianAdapter::_processAptRepositories: Warning: apt-key output should not be parsed (stdout is not a terminal)
gpg: failed to start the dirmngr '/usr/bin/dirmngr': No such file or directory
gpg: connecting dirmngr at '/tmp/apt-key-gpghome.8QK0L3wkCc/S.dirmngr' failed: No such file or directory
gpg: keyserver receive failed: No dirmngr
[ERROR] autoinstaller::Functions::build: An error occurred while performing build steps

Wo könnte das Problem liegen?
Wenn Ihr Logs braucht einfach mitteilen dann hänge ich es gerne an

MfG matdan