hello, All
I have created an app runs ok, today I performed "save as" action for other purpose, but now the app can't be opened to edit or play, there's always below screen:

as I am the owner of this App, I don't know why need permission to access the "Power Apps Notification " connector , I tried to do that according to the screen , but always get the screen when I tried to open the APP again , seems like I locked something , but I don't know what's going on.
it took me two month to create this App, does anyone have the same experience ? how to fix it ?
thanks in advance!