Autofill is a CRA feature. From CRA: Understanding Error Codes: error 29 means the beneficiary is not a Canadian resident as of the day the transaction occurred.
Please contact CRA at 1800-959-8281.
If you require further assistance please contact our phone support team or contact us directly on Facebook or Twitter.
Please try closing out of your return, then reopening it and trying again. If you switch to the Forms View of your TurboTax CD/Download version when you reopen it a pop-up window will appear for the AFR service).
If this does not work for you, please contact our Support Team from the link below. In the field that says "Ask your question", type in "your question" and you will be directed to an agent that can assist you.
https://support.turbotax.intuit.ca/contact/
If you require further assistance please contact our phone support team for further assistance or contact us directly on Facebook or Twitter.