Will Not Save

I cannot get the widget to save. It shows “spinning circle” after clicking “save.” Yes, I do have JetPack installed and connected, yes I have “stats” enabled and configured and yes, results are showing in my dashboard. Ideas? My site is http://ourpolitics.us. Thank you!

http://ww.wp.xz.cn/extend/plugins/popular-posts-tab-widget-for-jetpack/