Non Widget Aware Theme

I currently have the https://www.tofurious.com/professional-photography-blog-theme/ theme. I have version 1 with the flash fader header added to it I think but this theme isn’t widget aware.

All I get is: No Sidebars Defined

The theme you are currently using isn’t widget-aware, meaning that it has no sidebars that you are able to change. For information on making your theme widget-aware, please follow these instructions.

For the life of me I can’t work it out!

I would like to make it widget aware so that I can add twitter to my blog but not sure how to do this.

Is anyone able to help please?

Thanks!