Nasıl yapılır ? bu 404 sayfasını nerden bulup ekleyebilirim

<xf:title>{{ phrase('oops_we_ran_into_some_problems') }}</xf:title>

<svg width="380px" height="500px" viewBox="0 0 837 1045" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
    <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" sketch:type="MSPage">
        <path d="M353,9 L626.664028,170 L626.664028,487 L353,642 L79.3359724,487 L79.3359724,170 L353,9 Z" id="Polygon-1" stroke="#007FB2" stroke-width="6" sketch:type="MSShapeGroup"></path>
        <path d="M78.5,529 L147,569.186414 L147,648.311216 L78.5,687 L10,648.311216 L10,569.186414 L78.5,529 Z" id="Polygon-2" stroke="#EF4A5B" stroke-width="6" sketch:type="MSShapeGroup"></path>
        <path d="M773,186 L827,217.538705 L827,279.636651 L773,310 L719,279.636651 L719,217.538705 L773,186 Z" id="Polygon-3" stroke="#795D9C" stroke-width="6" sketch:type="MSShapeGroup"></path>
        <path d="M639,529 L773,607.846761 L773,763.091627 L639,839 L505,763.091627 L505,607.846761 L639,529 Z" id="Polygon-4" stroke="#F2773F" stroke-width="6" sketch:type="MSShapeGroup"></path>
        <path d="M281,801 L383,861.025276 L383,979.21169 L281,1037 L179,979.21169 L179,861.025276 L281,801 Z" id="Polygon-5" stroke="#36B455" stroke-width="6" sketch:type="MSShapeGroup"></path>
    </g>
</svg>
<div class="message-box">
    <h1>404</h1>
    <p>{$error|raw}</p>
    <div class="buttons-con">
        <div class="action-link-wrap">
            <a href="{$xf.homePageUrl}" class="link-button">Go to Home Page</a>
        </div>
    </div>
</div>

<style>
    .p-body-header,
    .p-breadcrumbs,
    .p-header,
    .p-nav-scroller,
    .p-sectionLinks,
    .p-footer {
        display: none;
    }
    
    .p-nav {
        background: #2F3242;
    }
    
    .p-body {
        background: #2F3242;
    }
    
    svg {
        position: absolute;
        left: 50%;
        margin-top: -250px;
        margin-left: -400px;
    }
    
    .message-box {
        height: 200px;
        width: 380px;
        position: absolute;
        top: 50%;
        left: 50%;
        margin-top: -100px;
        margin-left: 50px;
        color: #FFF;
        font-family: Roboto;
        font-weight: 300;
    }
    
    .message-box h1 {
        font-size: 60px;
        line-height: 46px;
        margin-bottom: 40px;
    }
    
    .buttons-con .action-link-wrap {
        margin-top: 40px;
    }
    
    .buttons-con .action-link-wrap a {
        background: #68c950;
        padding: 8px 25px;
        border-radius: 4px;
        color: #FFF;
        font-weight: bold;
        font-size: 14px;
        transition: all 0.3s linear;
        cursor: pointer;
        text-decoration: none;
        margin-right: 10px
    }
    
    .buttons-con .action-link-wrap a:hover {
        background: #5A5C6C;
        color: #fff;
    }
    
    #Polygon-1,
    #Polygon-2,
    #Polygon-3,
    #Polygon-4,
    #Polygon-4,
    #Polygon-5 {
        animation: float 1s infinite ease-in-out alternate;
    }
    
    #Polygon-2 {
        animation-delay: .2s;
    }
    
    #Polygon-3 {
        animation-delay: .4s;
    }
    
    #Polygon-4 {
        animation-delay: .6s;
    }
    
    #Polygon-5 {
        animation-delay: .8s;
    }
    
    @keyframes float {
        100% {
            transform: translateY(20px);
        }
    }
    
    @media (max-width: 450px) {
        svg {
            position: absolute;
            top: 50%;
            left: 50%;
            margin-top: -250px;
            margin-left: -190px;
        }
        .message-box {
            top: 50%;
            left: 50%;
            margin-top: -100px;
            margin-left: -190px;
            text-align: center;
        }
    }
</style>