That is odd… When I went to check on it today, I used Google and it led me straight to the web page, where I downloaded the latest version of the plug-in. Just now I clicked on that link in my earlier reply, and it took me there instantly. Maybe there is some kind of filtering going on in your web browser, by a browser plug-in or something? For example, if your web browser is running a content blocker, try temporarily disabling it. Or, see if it works if you try going to that address in a different web browser.
Succeeded. Downloaded via another browser. Installed in Lightroom and it works perfectly. Thanks!