iPhone 5c iOS 9.1 beta2 no go

Im on iPhone 5c iOS 9.1 beta 2 and on app version 3.4.0 and this app used to be great it has the best audio quality Ive heard but after I purchased all of the in app purchases and customized it when I close the app it no longer opens so its not usable at all unless I uninstall it and reinstall it and reconfigure it and never close it :,( what a pain if only it would work all the time it would be my favorite music app! And have a 5 star rating!

Kdog918 about jetAudio Hi-Res Music Player