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#32Xubuntu 20.04: libffi.so.6 missing

After installing TeilFeil on Xubuntu 20.04, I get the following error message:

"/usr/lib/teilfeil/TeilFeilWizard: error while loading shared libraries: libffi.so.6: cannot open shared object file: No such file or directory"

A short search brought up this post: https://stackoverflow.com/questions/61875869/ubuntu-20-04-upgrade-python-missing-libffi-so-6

This answer fixed it for me: https://stackoverflow.com/a/63329830

Downloading the 19.10 version of the package (http://mirrors.kernel.org/ubuntu/pool/main/libf/libffi/libffi6_3.2.1-8_amd64.deb) and and then installing it (sudo dpkg -i ./libffi6_3.2.1-8_amd64.deb).