During submission of a report (especially Word documents), you may come across this error message:
This is normally caused by accessibility issues in your report and solving this is easy.
Steps:
Step 1 - When you open your report, go to the bottom of the page and look for the accessibility icon and click on it (located near your word count):
Step 2 - This will open a side panel on the right side which shows what is causing the error:
Step 3 - Clicking on the error will show how to fix the issue:
Step 4 - Once you have cleared the accessibility errors, the error message when uploading your report to Moodle should disappear as well.