Error despues de actualizar a splynx 2.0

despues de actualizar a la 2.0 disminuyo el rendimiento general del servidor y que sin acceso.

aparece el siguiente mensaje:

Fatal error: Uncaught exception ‘exceptions\InvalidConfig’ with message ‘Couldn’t connect to MySQL!’ in /var/www/splynx/app/db/MySQL.php:80 Stack trace: #0 /var/www/splynx/app/base/BaseObject.php(17): db\MySQL->init() #1 [internal function]: base\BaseObject->__construct(Array) #2 /var/www/splynx/app/di/Container.php(138): ReflectionClass->newInstanceArgs(Array) #3 /var/www/splynx/app/di/Container.php(27): di\Container->build(‘db\MySQL’, Array, Array) #4 /var/www/splynx/app/BaseApp.php(306): di\Container->get(‘db\MySQL’, Array, Array) #5 /var/www/splynx/app/di/ComponentLocator.php(27): BaseApp::createObject(Array) #6 /var/www/splynx/app/BaseApp.php(360): di\ComponentLocator->get(‘db’) #7 /var/www/splynx/app/db/Record.php(32): BaseApp->getDb() #8 /var/www/splynx/app/db/Record.php(59): db\Record::getDb() #9 /var/www/splynx/app/settings/Config.php(188): db\Record::find() #10 /var/www/splynx/app/BaseApp.php(126): settings\Config::loadConfig(‘main’, ‘system’) #11 /var/www/splynx/app/BaseApp.php(72): BaseApp->loadLanguage() #1 in /var/www/splynx/app/db/MySQL.php on line 80

how many memory do you have on server ?

free -h