Donate button not working on mixion

Expected behavior

after logging in the app, i wanted to donate to the project for support to increase the development on it.

Actual behavior

But when i clicked on donation button, it was not responding.

How to reproduce

download mixion app
login in with their steemit details
click on donate button

• Browser: infinix note 4 pro
• Operating system: nougat

Recording Of The Bug