try this:
press menu>press ok on plugins>press green button to download new plugins>extensions>press ok on xtreme editor 2.12>wait for download to complete and restart the box.
press menu>press ok on plugins>press ok on xtreme editor>press menu>press ok on update plugin>wait until box restarts
press menu>press ok on plugins>press ok on xe downloader>assuming it is version 3.0.9 - you should be ready to provide your supplier with the QR code to get back online/sorted.