For the first improvement I added a link at the support page to the contact page of g10code where the key can be found.
Thanks.
However your fixture maybe conflicts with the given email at “Issue2.png”, bcoz this email is gpg4win-professional@intevation.de, and your given page’s email isn’t included in the PGP code.
PS: This isn’t an issue in emergency, maybe leave it here until you’re free to fix