yes i checked in "View Submitted Applications" and its showing the RPRF receipts that i uploaded back in November, and it was showing Review of additional documents The additional documents you provided have been uploaded since then. It only from this week it has changed to " we need additional documents to continue processing your application".Did you look under 'view submitted application'? The button is at the bottom of your cic profile page under the messages section. I got similar message and when I clicked the view submitted application button there was a request to upload duplicate police certificate. I used the option to upload the pdf copy. Then the status changed to:
Review of additional documents The additional documents you provided have been uploaded.