A feature that was necessary for the migration could not be activated at the destination. Sharegate displays the following error:
Cannot activate feature 'Feature Name' Feature
Sharegate will always try to activate dependent features that are necessary for the current migration. If SharePoint could not activate the feature - for instance if the feature has a dependency on another feature that is not activated - Sharegate will prompt an error with the problematic feature.
In your destination SharePoint environment, activate the features that are displayed in the error message and restart your migration.