Fatal error: Uncaught TypeError: Argument 1 passed to Slim\App::finalize() must implement interface Psr\Http\Message\ResponseInterface, null given, called in /var/www/site/vendor/slim/slim/Slim/App.php on line 316 and defined in /var/www/site/vendor/slim/slim/Slim/App.php:591
Stack trace:
#0 /var/www/site/vendor/slim/slim/Slim/App.php(316): Slim\App->finalize(NULL)
#1 /var/www/site/index.php(64): Slim\App->run()
#2 {main}
thrown in /var/www/site/vendor/slim/slim/Slim/App.php on line 591