You should use a translation file rather than change core plugin files as you will lose the change when updating the plugin.
Thanks
Thanks for the heads up.. I’ve been making CSS changes to the plugin using the wordpress stylesheet editor instead of the core plugin files. As for php modifcations, I’ve been creating a new folder in my childtheme directory for Ultimate Member changes (following similar instructions as you’ve provided for modifying custom emails)
I still cannot find what code is needed to modify the default empty profile text to something else: “Your profile is looking a little empty. Why not add some information”