problems with lightroom and licenses

Hi all,

sorry for my english, i'm here to ask support for a problem.

Last year i've bought Lightroom Desktop classic 6, one license.

This december, adobe advised me for the upgrade of lightroom to version 7.

I did the upgrade but the only upgrade was for Lightroom CC desktop to 7... I did it.

Now it says that I have to bought the license for the new lightroom CC...... BUT I DON'T WANT.

and now, when I go to my adobe account and see the order, there is the link to "download and series numbers"... well the link doesn't work:

Si è verificato un errore durante il caricamento dei download

I don't know how to download the previous version so I can reuse my license.

thanks in advance....

I use Mac OS.