diff --git a/Source/401.php b/Source/401.php
deleted file mode 100644
index a2a72da..0000000
--- a/Source/401.php
+++ /dev/null
@@ -1,5 +0,0 @@
-<?php
-
-require_once  __DIR__ . '/src/app.php';
-
-sendHTTPError(401);
\ No newline at end of file
diff --git a/Source/403.php b/Source/403.php
deleted file mode 100644
index eebe58f..0000000
--- a/Source/403.php
+++ /dev/null
@@ -1,5 +0,0 @@
-<?php
-
-require_once  __DIR__ . '/src/app.php';
-
-sendHTTPError(403);
\ No newline at end of file
diff --git a/Source/404.php b/Source/404.php
deleted file mode 100644
index 5666b07..0000000
--- a/Source/404.php
+++ /dev/null
@@ -1,5 +0,0 @@
-<?php
-
-require_once  __DIR__ . '/src/app.php';
-
-sendHTTPError(404);
\ No newline at end of file
diff --git a/Source/50x.php b/Source/50x.php
deleted file mode 100644
index 449b751..0000000
--- a/Source/50x.php
+++ /dev/null
@@ -1,5 +0,0 @@
-<?php
-
-require_once  __DIR__ . '/src/app.php';
-
-sendHTTPError(500);
\ No newline at end of file
diff --git a/Source/ajax.php b/Source/ajax.php
deleted file mode 100644
index c113006..0000000
--- a/Source/ajax.php
+++ /dev/null
@@ -1,8 +0,0 @@
-<?php
-
-require_once  __DIR__ . '/src/app.php';
-
-firstPage(true);
-
-
-
diff --git a/Source/assets/html/code.twig b/Source/assets/html/code.twig
index 919019b..7f4b275 100644
--- a/Source/assets/html/code.twig
+++ b/Source/assets/html/code.twig
@@ -83,11 +83,11 @@
                                 </div>
                                 <div class="col_full" id="lib">
                                     <label for="extlib">External Library:</label>
-                                    <input type="text" name="extlib" id="extlib" {% if code.extlib != "" %}value="{{ code.extlib }}"{% endif %} placeholder="Name of library">
+                                    <input type="text" name="extlib" id="extlib2" {% if code.extlib != "" %}value="{{ code.extlib }}"{% endif %} placeholder="Name of library">
                                 </div>
                                 <div class="col_full" id="libVer">
                                     <label for="extlibver">Library version:</label>
-                                    <input type="text" name="extlibver" id="extlibver" {% if code.extlib != "" %}value="{{ code.extlibver }}" required="required" {% endif %} placeholder="Library version">
+                                    <input type="text" name="extlibver" id="extlibver2" {% if code.extlib != "" %}value="{{ code.extlibver }}" required="required" {% endif %} placeholder="Library version">
                                 </div>
                                 <div class="col_full">
                                     <label for="code">Code:</label>
@@ -175,18 +175,18 @@
                 extlibver.removeAttribute("required");
             else
                 extlibver.setAttribute("required","required");
+            if(extlib2.value=="")
+                extlibver2.removeAttribute("required");
+            else
+                extlibver2.setAttribute("required","required");
         }
         extlib = document.getElementById("extlib");
         extlibver=document.getElementById("extlibver");
+        extlib2 = document.getElementById("extlib2");
+        extlibver2=document.getElementById("extlibver2");
         extlib.onkeyup=verRequired;
+        extlib2.onkeyup=verRequired;
     </script>
-    {#<script type="text/javascript">
-        var webpageid = 6; /* Webpage id, in all your website,the same */
-        var uniqueid = {{ code.idc }}{{ code.idu }}; /* Post/url id, every site you want different comments, an unique ID, 0 as default */
-        var needCookie = 'sessionID';
-        var customcss = 'assets/css/qozu.css';
-    </script>
-    <script src="http://qozu.jkanetwork.com/comments.js"></script>#}
 {% endblock %}
 
 {% block css %}
diff --git a/Source/src/app.php b/Source/src/app.php
index 56cebd7..2c1c011 100644
--- a/Source/src/app.php
+++ b/Source/src/app.php
@@ -177,8 +177,6 @@ function loginRegister($default,$state=''){
 }
 
 function loginOrRegister($state,$request){
-    global $app;
-
     switch ($state){
         case 3:
             return loginRegister('login','BAD_CREDENTIAL');
diff --git a/Source/src/users.php b/Source/src/users.php
index f45e282..a88bc5b 100644
--- a/Source/src/users.php
+++ b/Source/src/users.php
@@ -27,7 +27,7 @@ function checkInfo($request){
 function checklogin($email,$pass){
     $db = new DB();
     $bool = $db->checkPass($email,$pass);
-    
+
     if($bool){
         $idu = $db->loadIDU($email);
         $token = RandomString(50);