HI Friends, I am facing one problem with the contact form7

HI Friends, I am facing one problem with the contact form7

when the user fill the contact form and press submit buttom, then small loading is taking place and the form is submited but soon after this the whole page is loading and showing that the user have not enter his name and email.

why this is happending,How to solved this problem.

I have the same form under the blog where it is working fine……..