diff --git a/en/404.html b/en/404.html
deleted file mode 100644
index cfeb505..0000000
--- a/en/404.html
+++ /dev/null
@@ -1,71 +0,0 @@
-<!doctype html>
-<html lang="en">
-
-<head>
-  <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
-  <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
-  <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
-  <link rel="manifest" href="/site.webmanifest">
-  <link rel="mask-icon" href="/safari-pinned-tab.svg" color="#5bbad5">
-  <meta name="msapplication-TileColor" content="#da532c">
-  <meta name="theme-color" content="#ffffff">
-  <meta charset="utf-8">
-  <title>Page Not Found</title>
-  <meta name="viewport" content="width=device-width, initial-scale=1">
-  <style>
-    * {
-      line-height: 1.2;
-      margin: 0;
-    }
-
-    html {
-      color: #888;
-      display: table;
-      font-family: sans-serif;
-      height: 100%;
-      text-align: center;
-      width: 100%;
-    }
-
-    body {
-      display: table-cell;
-      vertical-align: middle;
-      margin: 2em auto;
-    }
-
-    h1 {
-      color: #555;
-      font-size: 2em;
-      font-weight: 400;
-    }
-
-    p {
-      margin: 0 auto;
-      width: 280px;
-    }
-
-    @media only screen and (max-width: 280px) {
-
-      body,
-      p {
-        width: 95%;
-      }
-
-      h1 {
-        font-size: 1.5em;
-        margin: 0 0 0.3em;
-      }
-
-    }
-  </style>
-</head>
-
-<body>
-  <h1>Page Not Found</h1>
-  <p>Sorry, but the page you were trying to view does not exist.</p>
-<a href="/index.html">Back to Home</a>
-
-</body>
-
-</html>
-<!-- IE needs 512+ bytes: https://docs.microsoft.com/archive/blogs/ieinternals/friendly-http-error-pages -->
