how i can fix these errors in pop os?
zedd@pop-os:~$ sudo apt install proxmox-ve postfix open-iscsi
[sudo] password for zedd:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libpve-u2f-server-perl : Depends: perlapi-5.28.1 but it is not installable
librados2-perl : Depends: perlapi-5.28.1 but it is not installable
lxc-pve : Depends: libssl1.1 (>= 1.1.0) but it is not installable
proxmox-backup-client : Depends: libssl1.1 (>= 1.1.0) but it is not installable
proxmox-backup-file-restore : Depends: libssl1.1 (>= 1.1.0) but it is not installable
Recommends: proxmox-backup-restore-image but it is not going to be installed
pve-cluster : Depends: libqb0 (>= 0.17.1-1) but it is not installable
Depends: perlapi-5.28.1 but it is not installable
pve-qemu-kvm : Depends: libjpeg62-turbo (>= 1.3.1) but it is not installable
Depends: libnettle6 but it is not installable
Depends: libproxmox-backup-qemu0 (>= 1.0.3) but it is not going to be installed
Conflicts: qemu-system-arm
Conflicts: qemu-system-common but 1:6.2+dfsg-2ubuntu6.15 is to be installed
qemu-server : Depends: libjson-c3 (>= 0.10) but it is not installable
vncterm : Depends: libjpeg62-turbo (>= 1.3.1) but it is not installable
E: Unable to correct problems, you have held broken packages.