Navigon 21xx update problem

I'm trying to update a Navigon 21** MAX.

I found updated maps, posted by nyky (thanks!) but after installing them, the Navigon starts the navigation with an EXCEPTION blahblahblah error 8 and 87.

Anyone knows what to do?

I downloaded Navigon Fresh 3.5.1 but that won't start due to a runtime error.
Resetting the device also did not help.
EDIT: Navigon Fresh 3.5.1 does work on a Win7 32bit pc. But no new software is been offered.

It seems Navigon topics are not that popular anymore but since map updates are posted there still may be someone who has got an idea to solve it?
Thanks in advance !

up.

Okay, the Navigon now seems to starts in a normal fashion.
At least, until I get the 'Navigation' and 'Pictures' option.
When choosing 'Navigation' I get the Navigon wallpaper animation and then it returns to the former screen with the two options.

Who can elaborate a bit on getting the maps working or point me in a right forum direction? Thanks!

One tip if you get a black screen after you replace maps / POI's etc. is to keep the old MapDrawer.nfs and reset the device. It is that which makes everything trouble. It helped me after a lot of hours ..

Look this. I have made video and shared link. Coment and subsribe! https://www.youtube.com/watch?v=XNBL_sGBOCs