yii\base\InvalidConfigException: Connection::dsn cannot be empty. in /var/www/html/vendor/yiisoft/yii2/db/Connection.php:627
Stack trace:
#0 /var/www/html/vendor/yiisoft/yii2/db/Connection.php(1074): yii\db\Connection->open()
#1 /var/www/html/vendor/yiisoft/yii2/db/Connection.php(1061): yii\db\Connection->getMasterPdo()
#2 /var/www/html/vendor/yiisoft/yii2/db/Connection.php(1023): yii\db\Connection->getSlavePdo(true)
#3 /var/www/html/vendor/yiisoft/yii2/db/Connection.php(871): yii\db\Connection->getDriverName()
#4 /var/www/html/vendor/yiisoft/yii2/db/ActiveRecord.php(439): yii\db\Connection->getSchema()
#5 /var/www/html/vendor/yiisoft/yii2/db/ActiveRecord.php(464): yii\db\ActiveRecord::getTableSchema()
#6 /var/www/html/vendor/yiisoft/yii2/db/ActiveRecord.php(180): yii\db\ActiveRecord::primaryKey()
#7 /var/www/html/vendor/yiisoft/yii2/db/BaseActiveRecord.php(109): yii\db\ActiveRecord::findByCondition(1)
#8 /var/www/html/frontend/components/Application.php(32): yii\db\BaseActiveRecord::findOne(1)
#9 /var/www/html/frontend/components/Application.php(25): frontend\components\Application->setIssuerByDomain()
#10 /var/www/html/vendor/yiisoft/yii2/base/BaseObject.php(112): frontend\components\Application->init()
#11 /var/www/html/vendor/yiisoft/yii2/base/Application.php(212): yii\base\BaseObject->__construct(Array)
#12 /var/www/html/frontend/web/index.php(16): yii\base\Application->__construct(Array)
#13 {main}