Restore all settings and then log out of Apple ID.
Log in to Apple ID again.
Where are the songs downloaded with Kugou Music Player on Apple phones:
Open them with software such as itools assistant.
Find Kugou Music in the application.
The folder where you are browsing is /Documents/kgmusic. This location is the song you downloaded from Kugou. PS. ?This folder /Documents/kgcache is Kugou’s cache. Listen to music online Everything like that will be here