Thank you very much for choosing our theme and for contacting us.
Please deactivate all the plugins not related to the theme, switch to the parent theme, if you use the child and provide your site admin access to the private area
1. navigate to Dashboard -> Products -> Attributes -> Color -> Configure iterms, enable swatch as shown http://prntscr.com/jskm29
Navigate to Theme Settings > Shop > Attribute swatches > choose pa_color (your color attribute) to show the swatches on the product grid if you want, and enable “Use images from product variations” if you want