Turbo Tax is saying I need to upgrade to Deluxe edition because they say I have a foreign account. I do not have an foreign account. Do I have to buy deluxe edition?

This happens if the question about having a foreign account is accidentally checked, even if the answer is later changed.  To remove the form that is generated by the "yes" and causing the upgrade, follow these steps:
 

1. Click on Tax Tools in the menu on the left.
2. Click on Tools
3. in the pop-up box select Delete a Form
4. Scroll down the list of forms on the side and select Schedule B and delete the form

Next, clear the cache and cookies from your browser's settings (Ctrl+shift+delete in Chrome)

Finally, close your browser, re-open and then log back into TurboTax to clear the error.  

If it continues, then the box is still marked for a foreign account.  You'll need to go back through the TurboTax interview, change the answer to no, and then repeat the above steps.