Fatal error: Uncaught TypeError: caGenerateDownloadFileName(): Argument #1 ($ps_template) must be of type string, null given, called in /var/www/html/app/controllers/SearchController.php on line 516 and defined in /var/www/html/app/helpers/exportHelpers.php:347 Stack trace: #0 /var/www/html/app/controllers/SearchController.php(516): caGenerateDownloadFileName() #1 /var/www/html/app/lib/Controller/RequestDispatcher.php(289): SearchController->__call() #2 /var/www/html/app/lib/Controller/AppController.php(108): RequestDispatcher->dispatch() #3 /var/www/html/index.php(135): AppController->dispatch() #4 {main} thrown in /var/www/html/app/helpers/exportHelpers.php on line 347