Why am getting this message in quizz section ?

Why am I getting this message in quiz section am not able to respond to the quiz

An error occurred while processing your request. Please try again.
You are unauthorized to perform this operation.

I have done quizzes. Never encountered such error.

I suggest you to logout and login once maybe that will solve your problem.

Yes will login and try again, I have face this problem before also, but to the quiz I have already responded not to the new ones

[quote]Yes will login and try again, I have face this problem before also, but to the quiz I have already responded not to the new ones[/quote]
Send a pm to support team and wait for their reply. May be some technical error.

Yes will login and try again, I have face this problem before also, but to the quiz I have already responded not to the new ones

Actually session may have expire. So as suggested login again and retry it. It happened to me too.