[Bug Found] The application will close after opening the settings or category menu button

Expected Behavior

This is the first time I used this application, I am expecting to make a pixel drawing as the application say. Supposed to be, the application is packed with many features to be used for editing if this bug I found will be fix

Actual behavior

The application will crash, or close itself when I try to open the Menu button. How many attempt I tried to open the setting from using the Menu button, but the app doesn't really open it instead it closes every time I try to open the Menu.

How to reproduce

The bug will be produced every moment I tried to open the Menu button. After pressing the said button, the application will crash or just close itself directly.

The mentioned button was shown and highlighted in the photo shown below.

• Browser: V5 (Vivo)
• Operating system: Android 6.0 Marshmallow

Recording Of The Bug