Codeception test error

I am trying to text using Codeception but getting the following error:

There was 1 failure:

---------
1) Failed to check that login works in EnterLoginCept (tests\acceptance\\EnterLoginCept.php)

 Step  I see "Welcome"
 Fail  Failed asserting that   /login
-->






    Depression App




a:link {
        text-decoration: none;
        color: #000000;
        padding-left:100px;
}
a:visited {
        text-decoration: none;
        color: #000000;
        padding-left:100px;
}
a:hover {
        text-decoration: none;
        color: #000000;
        padding-left:100px;
}
a:active {
        text-decoration:
[Content too long to display. See complete response in 'C:\xampp\htdocs\depressionapp\tests/_output\' directory]
--> contains "welcome".

Scenario Steps:

 6. $I->see("Welcome")
 5. // I expect to be registered
 4. $I->click("Login")
 3. $I->fillField("password","password")
 2. $I->fillField("email","jason@yahoo.com")
 1. $I->amOnPage("/login")

This is my login page:

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row">
        <div class="col-md-8 col-md-offset-2">
            <div class="panel panel-default">
               <H2>Login</h2>
                <div class="panel-body">
                    <form class="form-horizontal" role="form" method="POST" action="{{ url('/login') }}">
                        {!! csrf_field() !!}

                        <div class="form-group{{ $errors->has('email') ? ' has-error' : '' }}">
                            <label class="col-md-4 control-label">E-Mail Address</label>

                            <div class="col-md-6">
                                <input type="email" class="form-control" name="email" value="{{ old('email') }}">

                                @if ($errors->has('email'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('email') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group{{ $errors->has('password') ? ' has-error' : '' }}">
                            <label class="col-md-4 control-label">Password</label>

                            <div class="col-md-6">
                                <input type="password" class="form-control" name="password">

                                @if ($errors->has('password'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('password') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group">
                            <div class="col-md-6 col-md-offset-4">
                                <div class="checkbox">
                                    <label>
                                        <input type="checkbox" name="remember"> Remember Me
                                    </label>
                                </div>
                            </div>
                        </div>

                        <div class="form-group">
                            <div class="col-md-6 col-md-offset-4">
                                <button type="submit" class="btn btn-primary">
                                    <i class="fa fa-btn fa-sign-in"></i>Login
                                </button>

                                <a class="btn btn-link" href="{{ url('/password/reset') }}">Forgot Your Password?</a>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

And this is my test:

<?php
$I = new AcceptanceTester($scenario);
$I->wantTo('check that login works');
$I->amOnPage('/login');
$I->fillField('email','jason@yahoo.com');
$I->fillField('password','password');
$I->click('Login');
$I->expect('to be registered');
$I->see('Welcome');

?>

What is wrong I cannot work it out? I have tried to change $I->click('Login'); to $I->click('submit '); but then it throws this error

1) Failed to check that login works in EnterLoginCept (tests\acceptance\\EnterLoginCept.php)

 Step  I click "submit"
 Fail  Link or Button by name or CSS or XPath element with 'submit' was not found.

Scenario Steps:

 4. $I->click("submit")
 3. $I->fillField("password","password")
 2. $I->fillField("email","jason@yahoo.com")
 1. $I->amOnPage("/login")



```.