PDOException: SQLSTATE[HY000] [2002] Connection refused in /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php:128
Stack trace:
#0 /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php(128): PDO->__construct()
#1 /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect()
#2 /var/www/html/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(428): Zend_Db_Adapter_Pdo_Mysql->_connect()
#3 /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Abstract.php(460): Magento\Framework\DB\Adapter\Pdo\Mysql->_connect()
#4 /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query()
#5 /var/www/html/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(564): Zend_Db_Adapter_Pdo_Abstract->query()
#6 /var/www/html/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(631): Magento\Framework\DB\Adapter\Pdo\Mysql->_query()
#7 /var/www/html/generated/code/Magento/Framework/DB/Adapter/Pdo/Mysql/Interceptor.php(95): Magento\Framework\DB\Adapter\Pdo\Mysql->query()
#8 /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Abstract.php(737): Magento\Framework\DB\Adapter\Pdo\Mysql\Interceptor->query()
#9 /var/www/html/generated/code/Magento/Framework/DB/Adapter/Pdo/Mysql/Interceptor.php(1085): Zend_Db_Adapter_Abstract->fetchAll()
#10 /var/www/html/vendor/magento/module-store/App/Config/Source/RuntimeConfigSource.php(101): Magento\Framework\DB\Adapter\Pdo\Mysql\Interceptor->fetchAll()
#11 /var/www/html/vendor/magento/module-store/App/Config/Source/RuntimeConfigSource.php(61): Magento\Store\App\Config\Source\RuntimeConfigSource->getEntities()
#12 /var/www/html/vendor/magento/framework/App/Config/ConfigSourceAggregated.php(42): Magento\Store\App\Config\Source\RuntimeConfigSource->get()
#13 /var/www/html/generated/code/Magento/Framework/App/Config/ConfigSourceAggregated/Proxy.php(95): Magento\Framework\App\Config\ConfigSourceAggregated->get()
#14 /var/www/html/vendor/magento/module-store/App/Config/Type/Scopes.php(63): Magento\Framework\App\Config\ConfigSourceAggregated\Proxy->get()
#15 /var/www/html/vendor/magento/framework/App/Config.php(132): Magento\Store\App\Config\Type\Scopes->get()
#16 /var/www/html/generated/code/Magento/Framework/App/Config/Interceptor.php(50): Magento\Framework\App\Config->get()
#17 /var/www/html/vendor/magento/module-store/Model/StoreRepository.php(106): Magento\Framework\App\Config\Interceptor->get()
#18 /var/www/html/vendor/magento/module-store/Model/StoreRepository.php(127): Magento\Store\Model\StoreRepository->getById()
#19 /var/www/html/vendor/magento/module-store/Model/StoreResolver.php(181): Magento\Store\Model\StoreRepository->getActiveStoreById()
#20 /var/www/html/vendor/magento/module-store/Model/StoreResolver.php(126): Magento\Store\Model\StoreResolver->getDefaultStoreById()
#21 /var/www/html/vendor/magento/module-store/Model/StoreManager.php(160): Magento\Store\Model\StoreResolver->getCurrentStoreId()
#22 /var/www/html/generated/code/Magento/Store/Model/StoreManagerInterface/Proxy.php(119): Magento\Store\Model\StoreManager->getStore()
#23 /var/www/html/vendor/magento/module-store/Model/Resolver/Store.php(30): Magento\Store\Model\StoreManagerInterface\Proxy->getStore()
#24 /var/www/html/vendor/magento/framework/App/Config/ScopeCodeResolver.php(49): Magento\Store\Model\Resolver\Store->getScope()
#25 /var/www/html/vendor/magento/framework/App/Config.php(69): Magento\Framework\App\Config\ScopeCodeResolver->resolve()
#26 /var/www/html/generated/code/Magento/Framework/App/Config/Interceptor.php(23): Magento\Framework\App\Config->getValue()
#27 /var/www/html/vendor/magento/module-backend/App/Area/FrontNameResolver.php(123): Magento\Framework\App\Config\Interceptor->getValue()
#28 /var/www/html/vendor/magento/module-backend/App/Area/FrontNameResolver.php(106): Magento\Backend\App\Area\FrontNameResolver->isHostBackend()
#29 /var/www/html/vendor/magento/framework/App/AreaList.php(73): Magento\Backend\App\Area\FrontNameResolver->getFrontName()
#30 /var/www/html/vendor/magento/framework/App/Http.php(111): Magento\Framework\App\AreaList->getCodeByFrontName()
#31 /var/www/html/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http->launch()
#32 /var/www/html/vendor/magento/framework/App/Bootstrap.php(264): Magento\Framework\App\Http\Interceptor->launch()
#33 /var/www/html/pub/index.php(78): Magento\Framework\App\Bootstrap->run()
#34 {main}

Next Zend_Db_Adapter_Exception: SQLSTATE[HY000] [2002] Connection refused in /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php:144
Stack trace:
#0 /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /var/www/html/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(428): Zend_Db_Adapter_Pdo_Mysql->_connect()
#2 /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Abstract.php(460): Magento\Framework\DB\Adapter\Pdo\Mysql->_connect()
#3 /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query()
#4 /var/www/html/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(564): Zend_Db_Adapter_Pdo_Abstract->query()
#5 /var/www/html/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(631): Magento\Framework\DB\Adapter\Pdo\Mysql->_query()
#6 /var/www/html/generated/code/Magento/Framework/DB/Adapter/Pdo/Mysql/Interceptor.php(95): Magento\Framework\DB\Adapter\Pdo\Mysql->query()
#7 /var/www/html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Abstract.php(737): Magento\Framework\DB\Adapter\Pdo\Mysql\Interceptor->query()
#8 /var/www/html/generated/code/Magento/Framework/DB/Adapter/Pdo/Mysql/Interceptor.php(1085): Zend_Db_Adapter_Abstract->fetchAll()
#9 /var/www/html/vendor/magento/module-store/App/Config/Source/RuntimeConfigSource.php(101): Magento\Framework\DB\Adapter\Pdo\Mysql\Interceptor->fetchAll()
#10 /var/www/html/vendor/magento/module-store/App/Config/Source/RuntimeConfigSource.php(61): Magento\Store\App\Config\Source\RuntimeConfigSource->getEntities()
#11 /var/www/html/vendor/magento/framework/App/Config/ConfigSourceAggregated.php(42): Magento\Store\App\Config\Source\RuntimeConfigSource->get()
#12 /var/www/html/generated/code/Magento/Framework/App/Config/ConfigSourceAggregated/Proxy.php(95): Magento\Framework\App\Config\ConfigSourceAggregated->get()
#13 /var/www/html/vendor/magento/module-store/App/Config/Type/Scopes.php(63): Magento\Framework\App\Config\ConfigSourceAggregated\Proxy->get()
#14 /var/www/html/vendor/magento/framework/App/Config.php(132): Magento\Store\App\Config\Type\Scopes->get()
#15 /var/www/html/generated/code/Magento/Framework/App/Config/Interceptor.php(50): Magento\Framework\App\Config->get()
#16 /var/www/html/vendor/magento/module-store/Model/StoreRepository.php(106): Magento\Framework\App\Config\Interceptor->get()
#17 /var/www/html/vendor/magento/module-store/Model/StoreRepository.php(127): Magento\Store\Model\StoreRepository->getById()
#18 /var/www/html/vendor/magento/module-store/Model/StoreResolver.php(181): Magento\Store\Model\StoreRepository->getActiveStoreById()
#19 /var/www/html/vendor/magento/module-store/Model/StoreResolver.php(126): Magento\Store\Model\StoreResolver->getDefaultStoreById()
#20 /var/www/html/vendor/magento/module-store/Model/StoreManager.php(160): Magento\Store\Model\StoreResolver->getCurrentStoreId()
#21 /var/www/html/generated/code/Magento/Store/Model/StoreManagerInterface/Proxy.php(119): Magento\Store\Model\StoreManager->getStore()
#22 /var/www/html/vendor/magento/module-store/Model/Resolver/Store.php(30): Magento\Store\Model\StoreManagerInterface\Proxy->getStore()
#23 /var/www/html/vendor/magento/framework/App/Config/ScopeCodeResolver.php(49): Magento\Store\Model\Resolver\Store->getScope()
#24 /var/www/html/vendor/magento/framework/App/Config.php(69): Magento\Framework\App\Config\ScopeCodeResolver->resolve()
#25 /var/www/html/generated/code/Magento/Framework/App/Config/Interceptor.php(23): Magento\Framework\App\Config->getValue()
#26 /var/www/html/vendor/magento/module-backend/App/Area/FrontNameResolver.php(123): Magento\Framework\App\Config\Interceptor->getValue()
#27 /var/www/html/vendor/magento/module-backend/App/Area/FrontNameResolver.php(106): Magento\Backend\App\Area\FrontNameResolver->isHostBackend()
#28 /var/www/html/vendor/magento/framework/App/AreaList.php(73): Magento\Backend\App\Area\FrontNameResolver->getFrontName()
#29 /var/www/html/vendor/magento/framework/App/Http.php(111): Magento\Framework\App\AreaList->getCodeByFrontName()
#30 /var/www/html/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http->launch()
#31 /var/www/html/vendor/magento/framework/App/Bootstrap.php(264): Magento\Framework\App\Http\Interceptor->launch()
#32 /var/www/html/pub/index.php(78): Magento\Framework\App\Bootstrap->run()
#33 {main}