Login window not showing up (Ver 2.0.3 and 2.2.9)

I am trying to test your CMS but going to sitecake.php doesn’t do anything. The login window does not show up. Any solution? www.getapp.net

The same is happening with 2.2.9 version. Anyone? Some advice. Anyone from the team?

Check if you have PHP 5.6+ version installed.

Yes I did that. 5.6 is the working version. I changed that to 5.3 or 7.0 but nothing changes.
This is what console on Safari browser is showing:

2,0.3 is really old version that we do not support any more. Please purchase new version.