Aptana studio 3 unexpectedly leaves Mac

screenshot of the problem I am trying to install Aptana Studio 3 for my Mac to start Python programming, but after I download it from Aptana Studio and try to open it, it gives me an error message: "AptanaStudio3 exits unexpectedly". (screenshot attached)

I enabled downloading apps from "anywhere" in the Security & Privacy preferences on my Mac and tried other apatanastry issues on Stack Overflow, but it didn't work. I am using macOS Sierra version 10.12.4

I would like to know how can I open Aptana Studio 3 to start developing with Python! Thank!