openPGP Error Ubuntu 19.10

[Harry Seiler]

Dear maintainers,

first, thank you for the openPGP-applet i use in debian distribution!
It's a really great program.
Now, i have problems to run the openPGP-applet in Ubuntu 19.10 Eoan Ermine.
Install through the apt-get is ok but i cannot launch it.
I cannot find any troubleshooting information in the web, only "please 
help" postings in forums.

Do you know about bugs using the applet in Eoan Ermine?
Do you have troubleshooting information?

ps -ax says it runs:
9023 ?        SLl    0:13 /usr/bin/gnome-software --gapplication-service
9042 ?        Sl     0:01 /usr/bin/perl /usr/bin/openpgp-applet

thanks in advance
Harry