Mobile Widget not working with Nice Login Widget

Hi everyone

I’m using the Mobile Pack Base Theme, the Switcher and the Widget-options on my Website’s mobile-version.

Since i’ve installed the Plugin ‘Nice Login Widget’, there are no longer a widget shown in the div ‘sidebar’ on the mobile device.
http://wordpress.org/plugins/nice-login-register-widget/

As long as the Nice Login Plugin is inactive, the Widgets configured on the site Mobile Widget are shown on every mobile device as expected.

Can someone please help me?

http://wordpress.org/plugins/wordpress-mobile-pack/