upload file in bp registration form

Hi there!

you probably experienced multisite have already had this problem, although I found nothing in the forum.
I need to upload file (cv) in bp registration form, I'm using https://wordpress.org/plugins/buddypress-xprofile-custom-fields-type/ but i look that there is a problem, the file seems uploaded during registration but if I go on member page in 'Download file' I get a corrupt fie link -> http://site.org/wp-content/uploads-