How to remove gravatars in Cubepoints Dashboard?

Are there any developers or coders (staff and community) that can help me remove the use of gravatars in Cubepoints Dashboard of WordPress (/wp-admin –> Cubepoints tab)?

I have made the default avatar for WordPress in settings blank, but for some reason in cubepoints, the gravatar (power button looking) logo is used. Is there any way to disable this?

Please respond as soon as possible.