How to reinstall package ubuntu-advantage-tools

I tried to install FEniCS on Ubuntu 18.04.5 LTS with the following commands (from fenicsproject.org site):

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:fenics-packages/fenics
sudo apt-get update
sudo apt-get install fenics

The operations completed with an error:

Traceback (most recent call last):<br>
  File "\<string>", line 2, in \<module><br>
ModuleNotFoundError: No module named 'uaclient'<br>
dpkg: error processing package ubuntu-advantage-tools (--configure):<br>
installed ubuntu-advantage-tools package post-installation script subprocess returned error exit status 1<br>
Errors were encountered while processing:
 ubuntu-advantage-tools<br>
E: Sub-process /usr/bin/dpkg returned an error code (1)

In fact, executing:

dpkg --list | grep ubuntu-advantage-tools

I got:

iF ubuntu-advantage-tools 27.2.2~18.04.1 amd64 management tools for Ubuntu Advantage

It seems that the package is not copmpletely configurred. So I tried to reinstall it:

sudo apt-get install --reinstall ubuntu-advantage-tools

but it completed with an error:

E: Internal Error, No filename for ubuntu-advantage-tools:amd64

Finally I tried to purge the package and install it once more:

sudo apt-get purge ubuntu-advantage-tools

but it also didn't work:

Traceback (most recent call last):<br>
  File "\<string>", line 2, in \<module><br>
ModuleNotFoundError: No module named 'uaclient'<br>
dpkg: error processing package ubuntu-advantage-tools (--remove):<br>
installed ubuntu-advantage-tools package post-installation script subprocess returned error exit status 1<br>
Errors were encountered while processing:<br>
 ubuntu-advantage-tools<br>
E: Sub-process /usr/bin/dpkg returned an error code (1)

What is the reason of this behaviour and what should I do to get it working?