Languages – problem

Hi
I translated the plfb-core-en_US. file after Poedit (as I always do). I uploaded the plfb-core-pl_PL.po and plfb-core-pl_PL.mo files to the server to wp-content / languages / plugins, but the sentence “You need to login to see this link” does not change to Polish, when I am not logged in. I also changed the names of the plfb-core-pl_PL.po, plfb-core-pl_PL.mo to plfb-pl_PL.po, plfb-pl_PL.mo and it did not help either. I also uploaded both versions (names) of files to wp-content / plugins / profile-links-for-buddypress /languages and it doesn’t work either. Overall, thanks for the plugin ?? I will add 5 stars later.

The page I need help with: [log in to see the link]