Line 40, Column 4079: Attribute required is only allowed when the input type is checkbox, date, datetime, datetime-local, e-mail, file, month, number, password, radio, search, tel, text, time, url, or week.
…nter your email address." type="email"> <p class="help-block text-danger"></p>…
As you can see type is email and keeps throwing an error.
I put here complete tag declaration
<input class="form-control" placeholder="Email Address" id="email" required data-validation-required-message="Please enter your email address." type="email" >
May be your validator is looking for "e-mail" and not "email" input type??
With other validation tools and the same code I don't have any validations errors.