SoundAbout pro makes SoundAbout not start

I bought SoundAbout and then SoundAbout Pro. After buying SoundAbout Pro the normal SoundAbout app which used to work just fine just wouldn't start. I think I also did a reboot but still no go. Had to get a refund from Google because it just wasn't working.
My Phone is a Xiaomi Redmi Note 2 with Android 5.02. I can help with debugging the issue if needed.

This was happening in a previous version. What version of SoundAbout do you have? Do you have 2.6.6.6?

Sometimes the Google Play cache gets messed up. Try this:

1) Go into phone settings
2) Press on apps
3) Scroll to Google Play Store, and press it.
4) Press clear cache, clear data, force stop

1) Go into phone settings
2) Press on apps
3) Scroll to SoundAbout, and press it.
4) Press clear cache, clear data, force stop, and uninstall.
5) Download the latest SoundAbout from Google Play.
6) Purchase SoundAbout Pro from Google Play.
7) Restart phone.

See if this clears it up.