Not Support bellow Marshmallow OS

Hello Member I have Android Ionic App With Version 1
my App is not work properly bellow Marshmallow any suggesstion.

ionic platforms
Installed platforms:

android 6.2.3
ios 4.4.0

Cordova CLI: 7.0.1
Gulp version: CLI version 3.9.1
Gulp local: Local version 3.9.1
Ionic Framework Version: 1.3.3
Ionic CLI Version: 2.0.0
Ionic App Lib Version: 2.0.0
ios-deploy version: 1.9.1
ios-sim version: 5.0.11
OS: Mac OS X El Capitan
Node Version: v6.9.1
Xcode version: Xcode 8.2 Build version 8C38