If you are certain that your application is in fact complete, it's possible that it's part of the glitch that many have reported with the online portal, that eventually go away. Read through this thread for more info:On February 23rd 2023 I have submitted the online application for the renewal of my PR card.
The submission was accepted.
On April 26th I noticed that on the PR portal website my application was marked as "returned"
with the reason: "incomplete application". I did the application in the same way as my husband
and he did receive his renewed PR card last week.
I also did not get any feedback from IRCC on which documents and/or information is wrong or missing.
I also phoned the help-line: 1-888-242-2100, but they wanted to have my application number, which neither
I nor my husband have received on submit.
I would be very grateful for any advice of how to fix this situation!
Thank you
Gabrielle
https://www.canadavisa.com/canada-immigration-discussion-board/threads/pr-portal-incomplete-application.790515/