Are you able to tell us what the unexpected response actually is?
You can find out using Developer Tools/Firebug/whatever is in your browser. In Chrome, it goes like this:
1. Open the page, e.g. ask question page.
2. Open Dev Tools.
3. Click the Network tab.
4. Click the button on the page to ask a question.
5. In Dev Tools, an item should appear in the list. Click that, then the Response tab.
6. Take a screenshot or copy paste the text here.