Newbie advice - obsolete equipments?

[Pakolainen]

Hi,
A few years ago I bought the TacX Flow Smart (at least i recall it was this,), the basic resistance stands with the gear lever to connect to the handle bars.
I was using this in the garage during the winter in front of a tv whilst watching rugby etc.

I then chanced upon Ant+ usb antenna and the circular module that also goes on the handle bars. along with the TTS 4.0 software.
I've installed the software with the intention of again being in the garage and cycling mountain routes etc.
The software finds the circular module.
Opening the software it asks me to register the software every time and then comes back as - activation successful.
Choosing any of the Virtual reality courses - i can set start and end points but the START button is greyed out.
GPS requires me to register, i input my activation code and it says failed.

I've read that TTS is no longer supported and TacX is now under Garmin.
The software and Ant+ were heavily discounted (i now know why).
Is there anything i can do with this? Or should i look at alternatives?? Which would be.

Also the TacX app doesn't find my trainer - it used to. All batteries replaced on the cadence monitors.

Any advice highly appreciated.