Adobe Acrobat DC will not install on my computer (somewhat older mac with macOS Sierra operating system). I bought the license for Acrobat DC (with the 7 day free trial first) and the Creative Cloud interface downloaded on my computer but whenever I try to install acrobat (either from Google Chrome browser or from Creative Cloud directly) it says the installation was successful, but the app does not launch and the app does not exist on my hard drive when I search for it. On Creative Cloud, it invites me to install the app again. TL;DR: the system is saying the acrobat desktop app is successfully installing, but it definitely is not. I tried using the cleaner, I tried uninstall and re-install, but nothing has worked. What am I missing?