As for this integration, there are a few easy steps which you'll need to follow.
Navigate to your backend
Joomla > Extensions > Plugins Manager and then search for Content - Komento plugin. Please ensure this plugin is turned on.
Next, navigate to Komento's integration configuration page.
Joomla > Components > Komento > Integrations. Select JEvents in the component list.
Next, Under the Workflow tab, make sure that Enable Comments is set Yes and set the categories assignment appropriately.