Hi, i saw your code via inspect element and found some error
Your email field have this code : <input type="text" placeholder="E-mail" name="" required="">
The code should be something like this : <input class="form-control" type="text" name="email" size="30" value="">
Your email field is missing the value of name attribute. I think you should use this code for your email field
<input type="text" name="email" value="E-mail">