I have installed the Q&A per instructions. I am testing my

I have installed the Q&A per instructions. I am testing my site before I allow any sign-ups and I have come across an error. It will let me add a question but not let me add an answer. I get a 500 internal error when i click on Add New answer. I have tried different themes, reset the plugin ( deleted and reinstalled) etc. with no luck. Any suggestions?