<br />
<b>Fatal error</b>:  Uncaught RuntimeException: Could not connect to database. Message from SQL Server: An exception occurred while executing '            # dbal-plugin-loader
            SELECT
                   `name`,
                   `base_class` AS baseClass,
                   IF(`active` = 1 AND `installed_at` IS NOT NULL, 1, 0) AS active,
                   `path`,
                   `version`,
                   `autoload`,
                   `managed_by_composer` AS managedByComposer,
                   composer_name as composerName
            FROM `plugin`
            ORDER BY `installed_at`;':

SQLSTATE[08S01]: Communication link failure: 1047 WSREP has not yet prepared node for application use in /opt/shopware/vendor/shopware/core/HttpKernel.php:87
Stack trace:
#0 /opt/shopware/public/index.php(77): Shopware\Core\HttpKernel-&gt;handle(Object(Symfony\Component\HttpFoundation\Request))
#1 {main}
  thrown in <b>/opt/shopware/vendor/shopware/core/HttpKernel.php</b> on line <b>87</b><br />