How to reset SongCapsule data on your Mac if it won’t open
If you’re facing an issue when trying to open SongCapsule on your Mac, you can try resetting its data.
Open the Terminal app on your Mac.
Copy and paste the following command in Terminal, then press the Return/Enter key:
rm -rf ~/Library/Containers/com.sorcererhat.Next/DataWait a few seconds and open SongCapsule.