[Plugin: Flexi Quote Rotator] Nonce check issue

I’m working with the genesis framework, child theme “Balance”. When trying to set up the Flexi Rotator widget for the widget area (after having done the general settings under “Tools” I get the “Are you sure you want to do this? Please try again.” message.

http://ww.wp.xz.cn/extend/plugins/flexi-quote-rotator/