- Fix

backend/config/main.php

@@ -32,7 +32,7 @@ return [
         'rbac' => ['class' => 'common\modules\rbac\rbac'],
         'unisender' => ['class' => 'common\modules\unisender\Module'],
         'analyticsSchool' => ['class' => 'common\modules\analyticsSchool\Module',],
-        'Cases' => ['class' => 'common\modules\cases\Module'],
+        'cases' => ['class' => 'common\modules\cases\Module'],
 	],
     'components' => [
 		'session' => [

common/modules/cases/controllers/CasesAdminController.php

@@ -27,7 +27,7 @@ class CasesAdminController extends AdminController {
         $casesSearchModel = new SearchCoContent();
         $casesDataProvider = $casesSearchModel->search(4, Yii::$app->request->queryParams);
 
-        $this->render(
+        return $this->render(
             'manage',
             [
                 'casesSearchModel' => $casesSearchModel,