Chordfy can't handle certain character sets

This only affect the app (mine is running on iOS).

How to reproduce the error:

• Create a new playlist.
• Add the following song: Kælan Mikla called Næturblóm
• Try to open this playlist on iOS app.
• A message will show: "No songs added"
• Open the site Chordify on any browser on any platform (desktop, iOS, etc)
• The playlist and the song are there

Thanks

Ivan