In reply to Pratik.

You only need to add a second block (any will do) to the right-side column to test without adding the custom .grigora-sidebar class to it. See this bit in your theme code.

If you add something within the Group that is inside of the Column, it is no issue. However, then, each of the "widgets" are not separated into their own containers.

What I would do is target the gap between the content and sidebar columns rather than adding specific padding to a Group block within the right column.