Android : Android closes on login screen when backspace pressed on login activity

the application I am working on has a login page where users put in their credentials, and log in.

For some reason, if the user presses the backspace key while typing the password, the application just closes back to the phone's main screen.

The only logcat result that is shown upon the press is:

4332-4332/com.dxweb.dxscript W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection

I looked around but could not find a fix for this - maybe I am just missing something.

Thank you!