Report bug hunting : Simple-Draw App : Can not save file to SD Card

Expected behavior

Hope to save the file to SD CARD.

Actual behavior

In fact when saving the file to SD CARD encountered an error and can not be saved.

How to reproduce

• Download the Application
  
• Launch App
  
• Save image to SD CARD
  
• There are 3 options. Internal, Sd, root * Please select SD
  

• Device used: Samsung Grand prime SM-G530
  
  
  

• Operating System: Android version 4.4.4
  
  
  
• Application version: 3.1.6
  
  
  

Recording Of The Bug