Hi,
We have recently released an update of Grimlock for BuddyPress (v 1.3.11) that includes the integration with BuddyPress Member Reviews and BP Group Reviews. Updating this plugin to the latest version should add it to your website.
After the update, any integration problems should be fixed. However, you might still be seeing an issue because your browser cache is showing you an older version of the page (browsers do that to load pages faster). To see that the issue is resolved you will need to empty your browser cache and reload the page. If you want to read more on what browser cache is and how to clear it, here is an article that might help you:
https://www.lifewire.com/how-to-clear-cache-2617980
Kindest regards,