Dear Valerie,
We are sorry to say that we provided support for the Dokan Lite plugin and “Reviews” is a feature of Dokan Pro.
If you want to make compatible Dokan Pro with Karton then you need to customize the theme with your own or you need to hire someone else.
Also, you could hire our developers by contacting there https://www.themelooks.com/contact/
Best Regards,
ThemeLooks Support Team