No quiz added or saved

Hi there,

first of all thanks 4 making this plugin. But there is a big problem. I installed the plugin on several blogs (5) with different themes. And on all blogs i was not able to add a quiz or to save the settings from a quiz. Thats too bad because the demo looks very nice.

Anyone an idea?

Thanks for help

https://www.ads-software.com/extend/plugins/wp-pro-quiz/