PDOException: SQLSTATE[08004] [1040] Too many connections in /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php:128
Stack trace:
#0 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php(128): PDO->__construct()
#1 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect()
#2 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(422): Zend_Db_Adapter_Pdo_Mysql->_connect()
#3 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/zendframework1/library/Zend/Db/Adapter/Abstract.php(460): Magento\Framework\DB\Adapter\Pdo\Mysql->_connect()
#4 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query()
#5 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(558): Zend_Db_Adapter_Pdo_Abstract->query()
#6 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(625): Magento\Framework\DB\Adapter\Pdo\Mysql->_query()
#7 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/Lock/Backend/Database.php(84): Magento\Framework\DB\Adapter\Pdo\Mysql->query()
#8 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/Cache/LockGuardedCacheLoader.php(134): Magento\Framework\Lock\Backend\Database->lock()
#9 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/module-config/App/Config/Type/System.php(281): Magento\Framework\Cache\LockGuardedCacheLoader->lockedLoadData()
#10 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/module-config/App/Config/Type/System.php(207): Magento\Config\App\Config\Type\System->loadDefaultScopeData()
#11 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/module-config/App/Config/Type/System.php(181): Magento\Config\App\Config\Type\System->getWithParts()
#12 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/App/Config.php(132): Magento\Config\App\Config\Type\System->get()
#13 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/App/Config.php(80): Magento\Framework\App\Config->get()
#14 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/App/Config.php(93): Magento\Framework\App\Config->getValue()
#15 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/module-new-relic-reporting/Model/Config.php(94): Magento\Framework\App\Config->isSetFlag()
#16 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/module-new-relic-reporting/Plugin/HttpPlugin.php(49): Magento\NewRelicReporting\Model\Config->isNewRelicEnabled()
#17 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/Interception/Interceptor.php(121): Magento\NewRelicReporting\Plugin\HttpPlugin->beforeCatchException()
#18 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\Http\Interceptor->Magento\Framework\Interception\{closure}()
#19 /home/ubuntu/www/ptmarket_ecommerce_m2/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http\Interceptor->___callPlugins()
#20 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/App/Bootstrap.php(269): Magento\Framework\App\Http\Interceptor->catchException()
#21 /home/ubuntu/www/ptmarket_ecommerce_m2/index.php(52): Magento\Framework\App\Bootstrap->run()
#22 {main}

Next Zend_Db_Adapter_Exception: SQLSTATE[08004] [1040] Too many connections in /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php:144
Stack trace:
#0 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(422): Zend_Db_Adapter_Pdo_Mysql->_connect()
#2 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/zendframework1/library/Zend/Db/Adapter/Abstract.php(460): Magento\Framework\DB\Adapter\Pdo\Mysql->_connect()
#3 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query()
#4 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(558): Zend_Db_Adapter_Pdo_Abstract->query()
#5 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(625): Magento\Framework\DB\Adapter\Pdo\Mysql->_query()
#6 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/Lock/Backend/Database.php(84): Magento\Framework\DB\Adapter\Pdo\Mysql->query()
#7 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/Cache/LockGuardedCacheLoader.php(134): Magento\Framework\Lock\Backend\Database->lock()
#8 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/module-config/App/Config/Type/System.php(281): Magento\Framework\Cache\LockGuardedCacheLoader->lockedLoadData()
#9 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/module-config/App/Config/Type/System.php(207): Magento\Config\App\Config\Type\System->loadDefaultScopeData()
#10 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/module-config/App/Config/Type/System.php(181): Magento\Config\App\Config\Type\System->getWithParts()
#11 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/App/Config.php(132): Magento\Config\App\Config\Type\System->get()
#12 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/App/Config.php(80): Magento\Framework\App\Config->get()
#13 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/App/Config.php(93): Magento\Framework\App\Config->getValue()
#14 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/module-new-relic-reporting/Model/Config.php(94): Magento\Framework\App\Config->isSetFlag()
#15 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/module-new-relic-reporting/Plugin/HttpPlugin.php(49): Magento\NewRelicReporting\Model\Config->isNewRelicEnabled()
#16 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/Interception/Interceptor.php(121): Magento\NewRelicReporting\Plugin\HttpPlugin->beforeCatchException()
#17 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\Http\Interceptor->Magento\Framework\Interception\{closure}()
#18 /home/ubuntu/www/ptmarket_ecommerce_m2/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http\Interceptor->___callPlugins()
#19 /home/ubuntu/www/ptmarket_ecommerce_m2/vendor/magento/framework/App/Bootstrap.php(269): Magento\Framework\App\Http\Interceptor->catchException()
#20 /home/ubuntu/www/ptmarket_ecommerce_m2/index.php(52): Magento\Framework\App\Bootstrap->run()
#21 {main}