@Poligon I see. in the files i have astrocade is not present. But in the github directory there is a folder named "astrocde". Maybe my partner who is hosting the theme with his Github created one. I see that the main folder is wrong named and you have to rename. Also the poster astrocade.jpg wich is a version of puzzle categories.
I see also see that the controller for this system is missing.

If you rename the folder and the poster properly you will have the theme running excepting the controller. You will have to place a png file on the controller folder with the exact size of the other controller files