You need to make sure that you are allowing apps to write to your Documents folder:


Right click on Window Icon on the task bar


Select Settings


In the search section on with Settings, type the word “Documents”


Then select “Allow access to documents library on this device”




Be sure have these settings ON



If this doesn’t help please enable your OneDrive


Right click on OneDrive (Taskbar)


Select More


Then select Settings


Select the Account tab


Then Choose folders


Be sure to have “Documents” checked off


Then select the  Auto Save tab


Then Update Folders


Then Start Auto Save


Be sure to have “Documents” checked off


Then Start Protection