To upload files easily:
  • Keep file names under 30 characters. 
  • Do not include special characters in file names. 
  • Make sure your file is the type allowable in the particular question, as well as the correct size. 
  • Check that your internet connection can handle uploading the file within 60 minutes, otherwise you will be timed out of the site.

If none of these solutions work, contact your event administrator.