Excerpt Problem (arthemia)

Hello.

I am using arthemia premium on my wordpress. The problem with my wordpress is that the excerpts are not being implemented. on the home page, whole of the post appears which makes it messy. My website is https://www.gizmore.in .
I have tried all of the excerpts plugins but thy make my posts even bad.
Any solution to this problem of mine would be highly appreciated.I am using Arthemia premium 3.3 version.