Cubase does not reactivate 64bit plug-ins

Hi there,

I’m reporting an issue concerning the (allowed by a procedure, but not permitted in the end…) Vst-plugins “blacklisted” by Cubase Pro9.
There is a very simple procedure to follow in order to reactivate the plugins you wish to (at your own risk and, obviously, not previous 32bit versions), but in the end cubase does not allow you to do so…
Please, see attachment. The window says: “It wasn’t possible to reactivate the plugin. Please contact the plugin maker…”

Now, at my own risk, I’d be very happy to reactivate the plugins of my choice.

Is there anything wrong I did, or?..

Thanks for your help.