music pairing/bluetooth

I synced my phones music to the watch, and bluetooth my watch and phone to my Bose,all went well for playing the music from phone or watch, problem is on the my watch app on the phone when I click on music the app crashes just on the music all the rest no problem. So I have no way now to do anything with the music on the watch .Have tried unpairing both from the bose restarting both next step to unpair watch from the phone ,has anyone had a similar problem.