- Locate "Account" on the top right of your Facebook home page. Click on it
- Scroll to "Privacy Settings" and click on it.
- Locate "Block Lists" on the bottom middle of the page. Click on "Edit your lists".
- Scroll down to "Blocked Apps" and find "Frontierville" in that list. Click "unblock" if found.
**If not found than it is a deeper problem that needs to be solved by Facebook..