Getting error on iOS platform

[priteshmetafic]

Hello,
I cloned this repo and tried running example but I got an error so had to change the method.
Now when I try to run the project it gives me an error:
An Observatory debugger and profiler on iPhone 11 Pro Max is available at: http://127.0.0.1:58471/qaWFyHp7cUk=/ [VERBOSE-2:ui_dart_state.cc(166)] Unhandled Exception: MissingPluginException(No implementation found for method initialize on channel flutter.moum/screenshot_callback) #0 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:159:7) <asynchronous suspension>

I am attaching both screenshots.

[Joseph-Nathan]

any new news ?