diff --git a/Project/php/controller/AdminController.php b/Project/php/controller/AdminController.php
index 53ef641..a6b99a0 100755
--- a/Project/php/controller/AdminController.php
+++ b/Project/php/controller/AdminController.php
@@ -42,9 +42,9 @@ class AdminController extends UserController
 
     public function removeUser(): void {
         try {
-            global $user;
+            $userToRemove = Validation::filter_int($_GET['userToRemove'] ?? null);
             $model = new MdlAdmin();
-            $model->removeUser($user->getId());
+            $model->removeUser($userToRemove);
             $this->showAllUsers();
         }
         catch (Exception $e) {
@@ -80,9 +80,11 @@ class AdminController extends UserController
 
     public function removeUserFromGroup(): void {
         try {
-            $id = Validation::filter_int($_GET['id'] ?? null);
+            $userToRemove = Validation::filter_int($_GET['userToRemove'] ?? null);
+            $groupID = Validation::filter_int($_GET['selectedGroup'] ?? null);
             $model = new MdlAdmin();
-            $model->removeUserFromGroup($id);
+            $model->removeUserFromGroup($userToRemove);
+            $_GET['selectedGroup'] = $groupID;
             $this->showGroupDetails();
         }
         catch (Exception $e) {
@@ -120,10 +122,10 @@ class AdminController extends UserController
 
     public function addUserToGroup(): void {
         try {
-            global $user;
+            $userToAdd = Validation::filter_int($_GET['userToAdd'] ?? null);
             $group = Validation::filter_int($_GET['groupID'] ?? null);
             $model = new MdlAdmin();
-            $model->addUserToGroup($user->getId(), $group);
+            $model->addUserToGroup($userToAdd, $group);
             $_GET['selectedGroup'] = $group;
             $this->showGroupDetails();
         }
diff --git a/Project/php/controller/FrontController.php b/Project/php/controller/FrontController.php
index 323d715..863ca81 100755
--- a/Project/php/controller/FrontController.php
+++ b/Project/php/controller/FrontController.php
@@ -57,16 +57,17 @@ class FrontController
                             global $user;
                             $user = call_user_func_array(array($mdl, 'is'), array($_SESSION['login'], $_SESSION['roles']));
 
+                            if ($target == 'User' && $action == null) UserController::home();
+                            else if (!$user || $user->getId() != $id) throw new Exception("erreur 403 permission denied");
+
                             $controller = '\\controller\\' . $target . 'Controller';
                             $controller = new $controller;
 
-                            if ($target == 'User' && $action == null) $controller->home();
-                            else if (!$user || $user->getId() != $id) throw new Exception("erreur 403 permission denied");
-
                             if (is_callable(array($controller, $action)))
                                 call_user_func_array(array($controller, $action), array($match['params']));
                         }
                     }
+                    else if ($target == 'User' && $action == null) UserController::home();
                     else (new UserController())->login();
                 }
             }
diff --git a/Project/php/controller/UserController.php b/Project/php/controller/UserController.php
index 366b842..9829443 100755
--- a/Project/php/controller/UserController.php
+++ b/Project/php/controller/UserController.php
@@ -54,7 +54,7 @@ class UserController extends VisitorController
         }
     }
 
-    public function home(): void {
+    public static function home(): void {
         global $twig;
         global $user;
         if(isset($user)){
diff --git a/Project/php/controller/VisitorController.php b/Project/php/controller/VisitorController.php
index 5d6d07b..255eb4c 100755
--- a/Project/php/controller/VisitorController.php
+++ b/Project/php/controller/VisitorController.php
@@ -97,7 +97,7 @@ class VisitorController
         if (!$this->checkLoginExist($login)) throw new Exception(("login invalide"));
         $user = $model->connection($login, $password);
         if ($user == null) throw new Exception("mot de passe invalide");
-        FrontController::home();
+        UserController::home();
     }
 
     public function checkLoginExist(string $login): bool {
@@ -108,7 +108,7 @@ class VisitorController
     public function disconnect(): void {
         $mdl = new MdlUser();
         $mdl->deconnection();
-        FrontController::home();
+        UserController::home();
     }
 
     public function resultatsJeux(): void{
diff --git a/Project/php/templates/addGroupForm.twig b/Project/php/templates/addGroupForm.twig
index 3c0ca32..401a681 100755
--- a/Project/php/templates/addGroupForm.twig
+++ b/Project/php/templates/addGroupForm.twig
@@ -1,4 +1,4 @@
-<form action="{{ base }}/admin/{{ userID }}/addGroup" method="GET">
+<form action="{{ base }}/admin/{{ userID }}/addGroup" method="POST">
     <input name="num" type="text" placeholder="number" required>
     <input name="year" type="text" placeholder="year" required>
     <input name="sector" type="text" placeholder="sector" required>
diff --git a/Project/php/templates/groupContainer.twig b/Project/php/templates/groupContainer.twig
index ec79f7a..411f51a 100755
--- a/Project/php/templates/groupContainer.twig
+++ b/Project/php/templates/groupContainer.twig
@@ -1,5 +1,4 @@
 <table>
-    {{ userID }}
     {% if groups is defined %}
         {% for row in groups %}
             {% if selectedGroup is defined and selectedGroup == row.id %}
diff --git a/Project/php/templates/navBar.twig b/Project/php/templates/navBar.twig
index f8829cc..12b403f 100755
--- a/Project/php/templates/navBar.twig
+++ b/Project/php/templates/navBar.twig
@@ -28,8 +28,10 @@
                     {% endif %}
                     {% if userRole is empty %}
                         <li class="nav-item"><a class="nav-link" href="{{base}}/visitor/login">Login</a></li>
+                        {% else %}
+                            <li class="nav-item"><a class="nav-link" href="{{ base }}/visitor/disconnect">Log out</a></li>
                     {% endif %}
-                    <li class="nav-item"><a class="nav-link" href="{{ base }}/visitor/disconnect">Log out</a></li>
+
                 </ul>
             </div>
         </div>
diff --git a/Project/php/templates/userContainer.twig b/Project/php/templates/userContainer.twig
index d13345b..d742f6e 100755
--- a/Project/php/templates/userContainer.twig
+++ b/Project/php/templates/userContainer.twig
@@ -24,17 +24,17 @@
                 {% if action is defined %}
 
                     {% if action == 'removeUserFromGroup' %}
-                    <td><a href="{{base}}/admin/{{ userID }}/removeUserFromGroup?id={{row.id}}&selectedGroup={{selectedGroup}}">
+                    <td><a href="{{base}}/admin/{{ userID }}/removeUserFromGroup?userToRemove={{row.id}}&selectedGroup={{ selectedGroup }}">
                             <input class="btn-black" type="button" value="Delete from group"/>
                         </a></td>
 
                     {% elseif action == 'addUserToGroup' %}
-                    <td><a href="{{base}}/admin/{{ userID }}/addUserToGroup?userID={{row.id}}&groupID={{selectedGroup}}">
+                    <td><a href="{{base}}/admin/{{ userID }}/addUserToGroup?userToAdd={{row.id}}&groupID={{selectedGroup}}">
                             <input class="btn-black" type="button" value="Add to group"/>
                         </a></td>
 
                     {% elseif action == 'removeUser' %}
-                    <td><a href="{{base}}/admin/{{ userID }}/removeUser?userID={{row.id}}">
+                    <td><a href="{{base}}/admin/{{ userID }}/removeUser?userToRemove={{row.id}}">
                             <input class="btn-black" type="button" value="Delete"/>
                         </a></td>
                     {% endif %}