Hi Liz. Welcome to justanswer.
Restart the phone.
Is it still there on the screen?
CLICK HERE and then press I Agree. A file will get downloaded. Just open/run that file to start the remote desktop session.
Press I agree. A file will download. Open that file
Click the above link which I just gave you
Click it and then press I agree on that page.
Open the file which gets downloaded.
Have you downloaded the file for remote desktop assistance
Are you facing any difficulty in starting the remote desktop session, if yes then tell me so that I can guide you through
Have you tried turning the phone off then On again?
You said you were performing a clean, Were you using any app?
Can you navigate to the menu or icons?
Liz can you start the remote desktop session. Press this link below