Sorry but somehow the backstage data was changed, it's now corrected.
Let us know if you have any questions.
Sorry to hear that.
Can you try this?
Settings -> Apps -> click "Show system apps" menu -> Push -> Storage -> CLEAR DATA -> Reboot the phone
Can you gather some logs and share it to us so that we can look into it?
1. Input *#800# from dialing interface, enter "oneplus logkit", delete...