count(): Parameter must be an array or an object that implements Countable
#0 [internal function]: yii\base\ErrorHandler->handleError() #1 /var/www/da-info.pro/frontend/modules/search/models/TagSearch.php(21): count() #2 /var/www/da-info.pro/frontend/modules/search/controllers/TagController.php(36): frontend\modules\search\models\TagSearch->search() #3 [internal function]: frontend\modules\search\controllers\TagController->actionIndex() #4 /var/www/da-info.pro/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array() #5 /var/www/da-info.pro/vendor/yiisoft/yii2/base/Controller.php(178): yii\base\InlineAction->runWithParams() #6 /var/www/da-info.pro/vendor/yiisoft/yii2/base/Module.php(552): yii\base\Controller->runAction() #7 /var/www/da-info.pro/vendor/yiisoft/yii2/web/Application.php(103): yii\base\Module->runAction() #8 /var/www/da-info.pro/vendor/yiisoft/yii2/base/Application.php(384): yii\web\Application->handleRequest() #9 /var/www/da-info.pro/frontend/web/index.php(20): yii\base\Application->run() #10 {main}An internal server error occurred.