that's because switching stores requires cancelling apple Music..
did it not ask you if you want switch stores?
Are you back in your home store now?
Depending on what you accessed, and it what order, you can try these steps that may or may not work
To get back to your region and sign out of the other country.
Do all this in the order it’s listed.
Next ...
- Launch Settings
- Tap on General.
- Tap on Language & Region near the bottom.
- Tap on Region
- Select your home region.
Next .....
in Settings- iTunes App Store - your name - sign in
Next .....
Open the music app
Tap on the For you Tab-
Tap on your profile in upper right corner
Scroll down to .view Apple ID - Sign out - Sign back in
Now to restore your Apple Music
Turn iCloud Music Library off, then on again
On your iPhone, iPad, or iPod touch:
- Go to Settings > Music, then tap iCloud Music Library to turn it off.
- Close Settings.
- Go to Settings > Music, then tap iCloud Music Library to turn it on.
- Turn on “Show Apple Music