Permission Denied when trying to create alert from webapp

Screenshot from 2021-08-05 23-02-21
when i am trying to create a alert,
the following error comes
Screenshot from 2021-08-05 23-03-50
but when i try to create a toast it works just fine! Can someone help? Thank you!

Hi @ajesh
Developer app is restricted to create alert, only system app is allowed to create alert.