Why can't I save my active metrics section in Settings?
This article explains that, sometimes, the user cannot save the active metrics in Setting, displaying error icon(s) and an error notification, because the right number of active metrics have not been set.
Sometimes may happen that in Settings - Team - Metrics, the user displays some error icon(s) and the error notification appears when clicking on SAVE, as in the screenshot below:

Such alerts mean that the user has not set the right number of active metrics for the highlighted section. Each area has a minimum and maximum number of active metrics that must be set, so the user must align the setting based on such criteria.
To fix the situation, the user can open the section/area where the error is displayed, and edit the active metrics based on the requirement.