Modules language

I’m trying to create multiple languages for my module. Right now i’m working on the default language (English). this is what i have so far

class Module extends \yii\base\Module
{
    public $controllerNamespace = 'app\modules\blabla\controllers';

    public function init()
    {
        parent::init();
        $this->registerTranslations();
    }

    public function registerTranslations()
    {
        Yii::$app->i18n->translations['modules/blabla/*'] = [
            'class' => 'yii\i18n\PhpMessageSource',
            'sourceLanguage' => 'en-GB', 
            'basePath' => '@app/modules/blabla/messages',
            'fileMap' => [
                'app' => 'app.php',
            ],
            'on missingTranslation' => ['app\components\TranslationEventHandler', 'handleMissingTranslation']
        ];
    }

    public static function t($category, $message, $params = [], $language = null)
    {
        return Yii::t('modules/blabla/messages/'. $category, $message, $params, $language);
    }
}

my language file is in

frontend/modules/blabla/messages/en-GB/app.php

and in my app.php i have

return [
    'Price'=>'Product Price'
];

and in my model i have this

public function attributeLabels()
{
        return [
            'price'=> Module::t('app', 'Price'),
        ];
}

in my main.php

'i18n' => [
            'translations' => [
                '*' => [
                    'class'          => 'yii\i18n\PhpMessageSource',
                    'basePath'       => '@frontend/messages', 
                    'sourceLanguage' => 'en-GB',
                    // 'fileMap'        => [
                    //     'app' => 'app.php',
                    // ],
                    'on missingTranslation' => ['app\components\TranslationEventHandler', 'handleMissingTranslation']
                ],
            ],
        ],

but Product Price it is not showing in my view, only Price. what am i missing here? thanks

Remove the leading space?

Sorry, typo, no spaces in the actual file