Can't install 'opensc' package on Ubuntu 22.04

[plagov]

I have a fresh and clean installation of Ubuntu 22.04. I downloaded the installation script and run the script. It fails to install the DigiDoc4 because the opensc package could not be installed. Full output:

ubuntu@ubuntu:~/Downloads$ sh install-open-eid.sh 
Adding RIA repository to APT sources list (/etc/apt/sources.list.d/ria-repository.list)
deb https://installer.id.ee/media/ubuntu/ jammy main
Adding key to trusted key set (apt-key add)
0xC6C83D68 'RIA Software Signing Key <[email protected]>'
Installing software (apt-get update && apt-get install open-eid)
Ign:1 cdrom://Ubuntu 22.04.1 LTS _Jammy Jellyfish_ - Release amd64 (20220809.1) jammy InRelease
Hit:2 cdrom://Ubuntu 22.04.1 LTS _Jammy Jellyfish_ - Release amd64 (20220809.1) jammy Release
Hit:3 https://installer.id.ee/media/ubuntu jammy InRelease
Hit:5 http://archive.ubuntu.com/ubuntu jammy InRelease                                    
Hit:6 http://archive.ubuntu.com/ubuntu jammy-updates InRelease                            
Hit:7 http://security.ubuntu.com/ubuntu jammy-security InRelease             
Reading package lists... Done
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package opensc is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'opensc' has no installation candidate

Running the sudo apt-get install opensc also doesn't help and package cannot be installed:

ubuntu@ubuntu:~/Downloads$ sudo apt-get install opensc
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package opensc is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'opensc' has no installation candidate

How can I install the opensc package to be able to install the DigiDoc4 client?