You need to allow iPlum app to access your Camera for this to work. In iOS, go to Settings > iPlum app and grant access to Camera.
In Android, go to Settings > Device > Apps and find the iPlum app, and make the changes in the Permissions section.
Thanks, your download link is on its way!
Now how about inviting your colleagues and friends to join you on iPlum? More contacts on iPlum mean more secure communication for everyone!