Windows 10 mobile build 10512 - can't find and download Here Drive+! Where can I get it?

[Windows Central Question]

Windows 10 mobile build 10512 - can't find and download Here Drive+!

Installing the update to 10512 did not work on my Lumia 520 so I reset the phone and re-installed the software.

Afterwards, I wanted to download and install Here Drive+ again (German version) - but it is not available in the Store. Help! Where can I get it?