Student submitting assignment error message

Community Member

I have a student attempting to submit an assignment through the Canvas Student app on their iOS phone.  They take a picture of their document, but when they Click on Submit in the top right they get an error message saying "Failed upload" and a pop up that says "The specified resource does not exist."  Their camera is set to Most Compatible so it will be a jpg.  The app was also updated to the newest version.  Why is the submission failing to go through?  Thanks!