Able to download one MultiTerm termbase from App Store, but not a similar one...

I have a Studio 2019 Freelance Plus licence, and thus MultiTerm 2019, and have managed to download the following termbase without difficulties:

However, on trying to download the following termbase provided by the same user:

I have exactly the same problem described by Catherine Rushton here:

Is there an obvious reason why one should download while the other apparently rejects my licence, even though the specified requirements appear to be the same for both?