Questions not showing up (no matter what)

Hello friend,

I'm having this issue with the QA plugin: the questions don't show up, no matter how I change the user capabilities in the backend. Viewing answers and answering work just fine, but as soon as a user posts a new question, it becomes hidden.

Below is a screenshot of that.

In addition, changing user capabilities in the backend isn't working properly. The spinning icon don't disappear and the previously saved configs don't show up as well.

Maybe a database problem?

Thanks for your kind help!