Fatal error: Uncaught Error: Class "aksafan\fcm\source\responses\legacyApi\LegacyAbstractResponse" not found in /var/www/html/prod/vendor/aksafan/yii2-fcm-both-api/source/responses/legacyApi/TopicResponse.php:8 Stack trace: #0 {main} thrown in /var/www/html/prod/vendor/aksafan/yii2-fcm-both-api/source/responses/legacyApi/TopicResponse.php on line 8