Install error occurred on OS X El Capitan

I have the same issue, just clean installed OS X El Capitan on my Macbook and I’m getting an error: Install error occurred.

This is a really great app, would love to continue using it on El Capitan.

Can this app be updated so that it can be downloaded to and installed on El Capitan?

Thanks in advance for the help!

Froggyman19 about Caffeine