[Plugin: Dynamic Widgets] dynamic widget 404 error still

Hi-

I love(ed) this plugin but can;t make it work any more- when i click on static or dynamic in the widgets box, i go to 404 error. this is in multiple themes, multiple sites. On the sites where it was configured and working, it no longer works, and i can not edit it as the 404 keeps coming.

I’d be happy to share more details with the developer and appreciate any assistance- the changelog says this 404 error was resolved, but unf for me, it’s not.

http://ww.wp.xz.cn/extend/plugins/dynamic-widgets/