Provided link downloads version - (02-2019) and It worked successfully for me. Thank you. (Form 11-2018 throws version error)Finally Successful!!! I solved the issue by downloading the form IMM5257 (06-2019) E from this address: https://www.canada.ca/content/dam/ircc/migration/ircc/english/pdf/kits/forms/imm5257e.pdf?
**(note that the question mark should be at the end of the URL to download the (06-2019) version if not it will download the (11-2018) version)**
After filling in the latest version of the form (06-2019). I was able to upload the form successfully.
The (11-2018) version of the form will end up with document version error.
I waste almost two days to just upload an online form. Wasn't paper application faster than online for me?