Bug android-media-converter : problem while editing the output folder and no response when pressing the setting button

Expected behavior

Can edit the output folder and can display several options when pressing the settings button. to enable the requested document

Actual behavior

When we click to edit the output folder there is prompted Enable Documents in Settings.
When we click the settings button there is no response there

How to reproduce

• Download android-media-converter app in playstore Here
• install and open the app
• then see the instructions in the video I created
• Device used: Xiaomi redmi 3 RAM 2.00 GB

• Operating System: Android version 5.1.1 LMY47V
• Application version: 0.7.2-arm8
• GithubHere

Recording Of The Bug