Did you use the CD to reinstall? If so, try using the download as it's the final version with all the updates added: https://intuitglobal.intuit.com/downloads/CanadaTax/2016/dls/TurboTax2016_Bld8004_May18.exe
If that doesn't work, you can get copies of your past years tax returns (going back 11 years) by logging into your CRA My Account. If you're not able to use My Account, you can contact the CRA directly to get a copy of your past year's return. If you are in Canada or the United States, you can call the CRA at 1-800-959-8281. If you are elsewhere, you can call 613-940-8495. This page has more ways to contact the CRA: Contact the Canada Revenue Agency
You can make adjustments using the Canada Revenue Agency’s (CRA) My Account service or you can print & mail a T1-ADJ T1 Adjustment Request.
