Deprecated (8192): Creation of dynamic property Laminas\Diactoros\Uri::$base is deprecated [CORE/src/Http/ServerRequestFactory.php, line 254]
Deprecated (8192): Creation of dynamic property Laminas\Diactoros\Uri::$webroot is deprecated [CORE/src/Http/ServerRequestFactory.php, line 256]
Deprecated (8192): Creation of dynamic property App\Controller\ShapiroCorrespondenceTranscriptsController::$RequestHandler is deprecated [CORE/src/Controller/Controller.php, line 362]
Deprecated (8192): Creation of dynamic property App\Controller\ShapiroCorrespondenceTranscriptsController::$Flash is deprecated [CORE/src/Controller/Controller.php, line 362]
Deprecated (8192): Creation of dynamic property App\Controller\ShapiroCorrespondenceTranscriptsController::$Authentication is deprecated [CORE/src/Controller/Controller.php, line 362]
Deprecated (8192): Creation of dynamic property App\Controller\ShapiroCorrespondenceTranscriptsController::$ShapiroCorrespondenceTranscripts is deprecated [CORE/src/Controller/Controller.php, line 362]
Deprecated (8192): Creation of dynamic property App\View\AppView::$Form is deprecated [CORE/src/View/View.php, line 1220]
Warning (512): Unable to emit headers. Headers sent in file=/groups/alchemy/web/newton/vendor/cakephp/cakephp/src/Error/Debugger.php line=988 [CORE/src/Http/ResponseEmitter.php, line 71]
Warning (2): Cannot modify header information - headers already sent by (output started at /groups/alchemy/web/newton/vendor/cakephp/cakephp/src/Error/Debugger.php:988) [CORE/src/Http/ResponseEmitter.php, line 164]
Warning (2): Cannot modify header information - headers already sent by (output started at /groups/alchemy/web/newton/vendor/cakephp/cakephp/src/Error/Debugger.php:988) [CORE/src/Http/ResponseEmitter.php, line 197]
Deprecated (8192): Creation of dynamic property App\View\AppView::$Html is deprecated [CORE/src/View/View.php, line 1095]
Error: Missing Database Connection
Deprecated (8192): Creation of dynamic property App\View\AppView::$Url is deprecated [CORE/src/View/View.php, line 1220]
Deprecated (8192): Creation of dynamic property Cake\View\Helper\HtmlHelper::$Url is deprecated [CORE/src/View/Helper.php, line 115]

Missing Database Connection 📋

Cake\Database\Exception\MissingConnectionException
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Connection to Mysql could not be established: SQLSTATE[HY000] [2002] Connection refused

        $retry = new CommandRetry(new ErrorCodeWaitStrategy(static::RETRY_ERROR_CODES5), 4);
        try {
            $retry->run($action);
        } catch (PDOException $e) {
            throw new MissingConnectionException(
                [
                    'driver' => App::shortName(static::class, 'Database/Driver'),
                    'reason' => $e->getMessage(),
                ],

If you want to customize this error message, create templates/Error/missing_connection.php