Hi there,
Sorry for the long delay!
Since the %s is dynamic, and is replaced by the points label, loco translate cannot translate it.
If you simply need to change the label to something else, you can do so within the settings: https://d.pr/i/xU0fA3
However, if you need to translate the label into multiple languages, you would need to do so manually by filtering the label.
In v1.4.1, we added 2 new filters that you can hook into within your theme
xt_woopr_plural_points_label
xt_woopr_singlular_points_label
With these filters, you can modify or translate the label manually.
Hope this helps