I bought the Quform plugin today. Unfortunately, it has been pretty disappointing so far for me. After entering the purchasing code and verifying the plugin, I tried to create a form. Unfortunately, I’m not able to add items to a form or edit the settings of it. Every time I try to do this, I get the message that there has been an error and my edits could not get saved. Also, since I installed the plugin, there is a warning in my wordpress admin panel. (a screenshot is attached) This might help to find the issue but I’m not sure what exactly it means. Maybe somebody can help me with that?
I’m using WordPress 3.8.1 and the theme is called BritaNews.