diff --git a/composer.json b/composer.json
index bc9d149fbd..d671c057e4 100755
--- a/composer.json
+++ b/composer.json
@@ -85,7 +85,6 @@
         "ezyang/htmlpurifier": "~4.12",
         "firebase/php-jwt": "^5.0",
         "friendsofsymfony/jsrouting-bundle": "~2.0",
-        "friendsofsymfony/rest-bundle": "dev-master",
         "graphp/algorithms": "~0.8",
         "graphp/graphviz": "~0.2",
         "gregwar/captcha-bundle": "^2.0",
@@ -139,7 +138,7 @@
         "symfony/polyfill-apcu": "^1.9",
         "symfony/requirements-checker": "^1.1",
         "symfony/security-bundle": "^5.0",
-        "symfony/string": "5.0.*",
+        "symfony/string": "^5.0",
         "symfony/templating": "^5.0",
         "symfony/translation": "^5.0",
         "symfony/twig-pack": "^1.0",
diff --git a/config/bundles.php b/config/bundles.php
index 96da093216..6d63a582cd 100644
--- a/config/bundles.php
+++ b/config/bundles.php
@@ -13,7 +13,6 @@ return [
     Symfony\Bundle\DebugBundle\DebugBundle::class => ['dev' => true, 'test' => true],
     Symfony\Bundle\WebProfilerBundle\WebProfilerBundle::class => ['dev' => true, 'test' => true],
     FOS\JsRoutingBundle\FOSJsRoutingBundle::class => ['all' => true],
-    FOS\RestBundle\FOSRestBundle::class => ['all' => true],
     Chamilo\CoreBundle\ChamiloCoreBundle::class => ['all' => true],
     Chamilo\CourseBundle\ChamiloCourseBundle::class => ['all' => true],
     Chamilo\TicketBundle\ChamiloTicketBundle::class => ['all' => true],
@@ -40,4 +39,5 @@ return [
     Twig\Extra\TwigExtraBundle\TwigExtraBundle::class => ['all' => true],
     Symfony\Bundle\MakerBundle\MakerBundle::class => ['dev' => true],
     SymfonyCasts\Bundle\ResetPassword\SymfonyCastsResetPasswordBundle::class => ['all' => true],
+    Symplify\ParameterNameGuard\ParameterNameGuardBundle::class => ['dev' => true, 'test' => true],
 ];
diff --git a/config/packages/fos_rest.yaml b/config/packages/fos_rest.yaml
deleted file mode 100644
index 720790ec16..0000000000
--- a/config/packages/fos_rest.yaml
+++ /dev/null
@@ -1,18 +0,0 @@
-#fos_rest:
-#    routing_loader:
-#        include_format: false
-#    param_fetcher_listener: true
-#    format_listener:
-#        rules:
-#            - {path: '^/api2', priorities:['json'], fallback_format: json, prefer_extension: false}
-#            - {path: '^/', priorities: ['html', '*/*'], fallback_format: ~, prefer_extension: true}
-#    view:
-#        view_response_listener: true
-#        formats:
-#            json: true
-
-#    body_listener: true
-#    body_converter:
-#        enabled: true
-#        validate: true
-#        validation_errors_argument: validationErrors
diff --git a/config/packages/security.yaml b/config/packages/security.yaml
index 76c485afc1..4b4af46c15 100644
--- a/config/packages/security.yaml
+++ b/config/packages/security.yaml
@@ -75,7 +75,7 @@ security:
                 path: /logout
                 target: /
             switch_user: false
-#            json_login:
-#                check_path: app_login
-#                username_path: username
-#                password_path: password
+            json_login:
+                check_path: /login
+                username_path: security.credentials.login
+                password_path: security.credentials.password
\ No newline at end of file
diff --git a/config/routes.yaml b/config/routes.yaml
index a55cc9a693..ad2420aee7 100644
--- a/config/routes.yaml
+++ b/config/routes.yaml
@@ -4,9 +4,6 @@ login_check:
 logout:
     path: /logout
 
-sonata_user_admin_security_logout:
-    path: /logout
-
 oneup_uploader:
     resource: .
     type: uploader
@@ -23,6 +20,19 @@ legacy_plugin:
     requirements:
         name: .+
 
+courses_vue:
+    path: /courses/{wildcard}
+    controller: Chamilo\CoreBundle\Controller\IndexController::courses
+    requirements:
+        wildcard: .*
+
+sessions_vue:
+    path: /sessions/{wildcard}
+    controller: Chamilo\CoreBundle\Controller\IndexController::courses
+    requirements:
+        wildcard: .*
+
+
 # web url shortcuts for legacy templates
 web.ajax:
     path: main/inc/ajax/
@@ -30,12 +40,6 @@ web.ajax:
 web.main:
     path: main/
 
-# Core controllers
-core_admin:
-    resource: '@ChamiloCoreBundle/Controller/Admin'
-    type: annotation
-    prefix: /admin
-
 #liip_theme:
 #    resource: "@LiipThemeBundle/Resources/config/routing.xml"
 #    prefix: /theme