NoSuchElementException: None.get in play framework for scala

I created the upadte method, but when I test it it shows the error NoSuchElementException: None.get

UserController

   object UserController extends Controller {

   def update(id:Long) = DBAction {  implicit rs =>

   var user = simpleUserForm.bindFromRequest.get

   user.id = Users.toOption(id)
   Users.update(user)
   Redirect(routes.UserController.list)
  }

   val simpleUserForm :Form[User] = Form {
    mapping(
     "firstName" -> nonEmptyText,
     "lastName" -> nonEmptyText,
     "email" -> email,
     "birthDate" -> nonEmptyText,
     "phone" -> nonEmptyText,
     "username" -> text,
     "password" -> nonEmptyText
   )(UserForm.fromSimpleForm)(UserForm.toSimpleForm)
  }

}

edit.scala.html

@import models.auth.Users
@(title: String, user:models.auth.User)

@main(title){

<form method="post" action="@controllers.auth.routes.UserController.update(Users.toLong(user.id))">
<input type="text" placeholder="First Name" name="firstName" value="@user.firstName"/><br/>
<input type="text" placeholder="Last Name" name="lastName" value="@user.lastName"/><br/>
<input type="email" placeholder="Email" name="email" value="@user.email" /><br/>
<input type="text" placeholder="Phone" name="phone" value="@user.phone" /><br/>
<input type="text" placeholder="Birthdate(dd/MM/yyyy)" name="birthDate" value="@user.birthDate" /><br/>
<input type="text" placeholder="Username" name="username" value="@user.username" /><br/>

<input type="submit" value="Update User" />

}

routes

 POST        /user/:id/         controllers.auth.UserController.update(id:Long)

I've done create, read and delete, but by update I found the error in that line

var user = simpleUserForm.bindFromRequest.get

the error is NoSuchElementException: None.get