Notice (1024) : Undefined property: SongsController::$Flash in /var/www/vhosts/bollygane.com/httpdocs/src/Controller/SongsController.php on line 119 [in /var/www/vhosts/bollygane.com/httpdocs/vendor/cakephp/cakephp/src/Controller/Controller.php, line 342]
Warning (512) : Unable to emit headers. Headers sent in file=/var/www/vhosts/bollygane.com/httpdocs/vendor/cakephp/cakephp/src/Error/Renderer/HtmlErrorRenderer.php line=37 [in /var/www/vhosts/bollygane.com/httpdocs/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 71]
Warning (2) : Cannot modify header information - headers already sent by (output started at /var/www/vhosts/bollygane.com/httpdocs/vendor/cakephp/cakephp/src/Error/Renderer/HtmlErrorRenderer.php:37) [in /var/www/vhosts/bollygane.com/httpdocs/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 164]
Warning (2) : Cannot modify header information - headers already sent by (output started at /var/www/vhosts/bollygane.com/httpdocs/vendor/cakephp/cakephp/src/Error/Renderer/HtmlErrorRenderer.php:37) [in /var/www/vhosts/bollygane.com/httpdocs/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 197]
Error: Call to a member function error() on null

Call to a member function error() on null 📋

Error
Error in: APP/Controller/SongsController.php, line 119
APP/Controller/SongsController.php at line 119 (edit)
                ->where(['Songs.slug' => $slug])
                ->first();
        
            if (!$song) {
                $this->Flash->error(__('Song not found.'));
                return $this->redirect(['controller' => 'Pages''action' => 'home']);
            } else {
                $this->set('movies', [$song]); // mimic original `$movies[0]` logic
        

If you want to customize this error message, create templates/Error/error500.php