Restoring your NAND backup was a bit excessive -- you just needed to update your Luma version in order to boot on 11.14.
If you're able to see your titles in Data Management (X'ed out),
faketik should be able to make them reappear. Place
faketik.3dsx in your
3ds (not
Nintendo 3DS!) , then enter Homebrew Launcher by following these instructions:
1. Launch the Download Play application (orange icon with a DS pictured on it)
2. Wait until you see the two buttons
3. Press (Left Shoulder) + (D-Pad Down) + (Select) at the same time to open the Rosalina menu
4. Select "Miscellaneous options"
5. Select "Switch the hb. title to the current app."
6. Press (B) to continue
7. Press (B) to return to the Rosalina main menu
8. Press (B) to exit the Rosalina menu
9. Press (Home), then close Download Play
10. Launch the Download Play application
11. Your device should load into the Homebrew Launcher