Always on display issue

[Abdallahalhindawi]

Since two days i faced this icon stuck on my screen and I'm unable to remove it or delete it. And nothing shows in the notification center, it's only on the always on display. 

[Amaroksenpai]

note placed in AOD.....go to notes app and unpin or delete the note if the problem is fixed please hit the solution button for me ❤

[Abdallahalhindawi]

I tried there's no pin notes and i even tried to delete the app it didn't work

[FaheemNauman]

Same here