Translate Fields Profile and…

Unfortunately I can’t add a photo, but in short: Buddy X theme, buddyPress plugin displays the profile builder widget <h3 class = “screen-heading profile-group-title-edit”> edit: “Base” </h3> I need translate Base into Russian, there are also other strings, the Loco translate plugin, does not see the Base string … how to translate the buddy press and bbpress widgets correctly, spent a lot of time, did not find how to translate into Russian.