Can't get started with CATIA V5! Help!

Hello everyone! 

I'm willing to learn CATIA and recently purchased subscription to 3DExperience Engineer for Students using the following link:

https://www.3ds.com/edu/education/students/solutions/engineer-3dx

 

I'm assuming that I have to use CATIA from "Design with CATIA V5" (shown in ss below)

But unfortunately, after I install CATIA V5 and try to run, it shows an error.

Is there any way to access CATIA V5? I think "Part design" is different from CATIA V5. I still installed it and I can see the interface is different from any CATIA V5 tutorial.

Please help!