When I try to export the game as aab, I encounter the following error line and my game does not open on android. The files creates again when I try to delete the files.

Look in your project settings for application/config/icon and application/run/main_scene (and possibly application/boot_splash/image). Make sure they're all set to existing files that are being included in your project.

    It may be the file names. The first one has two dots and the second has a space. You might want to rename them:

    icon.png
    Level_1.tscn

      BertanGokalp but when I change their names, it goes back to the old name.

      I still think that's the problem. If it goes back to the old name, that is suspicious.

        Try to rename inside Godot. In the window on the bottom left you can right-click and choose rename. You may also have to update the references, check in the project settings for the icon, and if you are loading any scenes with code.