SQLSTATE[HY000] [2003] Can't connect to MySQL server Drupal 8 page

My drupal site work locally, however, when put on server I get following error and I am pretty stuck here, User on MySQL databases has all privilages:

PDOException: SQLSTATE[HY000] [2003] Can't connect to MySQL server on 'spustpokupi.eu' (111) in /home/spustpok/public_html/core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php on line 79 #0 /home/spustpok/public_html/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php(420): PDO->__construct('mysql:host=site address', 'UserfromMySQLDatabases', 'PasswordfromMySQLDatabases', Array) 1 /home/spustpok/public_html/core/lib/Drupal/Core/Database/Database.php(371): Drupal\Core\Database\Driver\mysql\Connection::open(Array) 2 /home/spustpok/public_html/core/lib/Drupal/Core/Database/Database.php(166): Drupal\Core\Database\Database::openConnection('default', 'default') 3 [internal function]: Drupal\Core\Database\Database::getConnection('default') 4 /home/spustpok/public_html/core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php(79): call_user_func_array('Drupal\Core\Dat...', Array) 5 /home/spustpok/public_html/core/lib/Drupal/Component/DependencyInjection/Container.php(171): Drupal\Component\DependencyInjection\PhpArrayContainer->createService(Array, 'database') 6 /home/spustpok/public_html/core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php(260): Drupal\Component\DependencyInjection\Container->get('database', 1) 7 /home/spustpok/public_html/core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php(62): Drupal\Component\DependencyInjection\PhpArrayContainer->resolveServicesAndParameters(Array) 8 /home/spustpok/public_html/core/lib/Drupal/Component/DependencyInjection/Container.php(171): Drupal\Component\DependencyInjection\PhpArrayContainer->createService(Array, 'cache.container') 9 /home/spustpok/public_html/core/lib/Drupal/Core/DrupalKernel.php(543): Drupal\Component\DependencyInjection\Container->get('cache.container') 10 /home/spustpok/public_html/core/lib/Drupal/Core/DrupalKernel.php(904): Drupal\Core\DrupalKernel->getCachedContainerDefinition() 11 /home/spustpok/public_html/core/lib/Drupal/Core/DrupalKernel.php(476): Drupal\Core\DrupalKernel->initializeContainer() 12 /home/spustpok/public_html/core/lib/Drupal/Core/DrupalKernel.php(692): Drupal\Core\DrupalKernel->boot() 13 /home/spustpok/public_html/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) 14 {main}