Fatal error: Uncaught TypeError: Slim\Handlers\Strategies\RequestResponse::__invoke(): Return value must be of type Psr\Http\Message\ResponseInterface, null returned in /home1/plugmatt/public_html/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php:43 Stack trace: #0 /home1/plugmatt/public_html/vendor/slim/slim/Slim/Routing/Route.php(384): Slim\Handlers\Strategies\RequestResponse->__invoke(Array, Object(Slim\Psr7\Request), Object(Slim\Psr7\Response), Array) #1 /home1/plugmatt/public_html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(81): Slim\Routing\Route->handle(Object(Slim\Psr7\Request)) #2 /home1/plugmatt/public_html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(81): Slim\MiddlewareDispatcher->handle(Object(Slim\Psr7\Request)) #3 /home1/plugmatt/public_html/vendor/slim/slim/Slim/Routing/Route.php(341): Slim\MiddlewareDispatcher->handle(Object(Slim\Psr7\Request)) #4 /home1/plugmatt/public_html/vendor/slim/slim/Slim/Routing/RouteRunner.php(84): Slim\Routing\Route->run(Object(Slim\Psr7\Request)) #5 /home1/plugmatt/public_html/vendor/slim/twig-view/src/TwigMiddleware.php(125): Slim\Routing\RouteRunner->handle(Object(Slim\Psr7\Request)) #6 /home1/plugmatt/public_html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(147): Slim\Views\TwigMiddleware->process(Object(Slim\Psr7\Request), Object(Slim\Routing\RouteRunner)) #7 /home1/plugmatt/public_html/vendor/slim/slim/Slim/Middleware/ErrorMiddleware.php(107): Psr\Http\Server\RequestHandlerInterface@anonymous->handle(Object(Slim\Psr7\Request)) #8 /home1/plugmatt/public_html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(147): Slim\Middleware\ErrorMiddleware->process(Object(Slim\Psr7\Request), Object(Psr\Http\Server\RequestHandlerInterface@anonymous)) #9 /home1/plugmatt/public_html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(81): Psr\Http\Server\RequestHandlerInterface@anonymous->handle(Object(Slim\Psr7\Request)) #10 /home1/plugmatt/public_html/vendor/slim/slim/Slim/App.php(215): Slim\MiddlewareDispatcher->handle(Object(Slim\Psr7\Request)) #11 /home1/plugmatt/public_html/vendor/slim/slim/Slim/App.php(199): Slim\App->handle(Object(Slim\Psr7\Request)) #12 /home1/plugmatt/public_html/public/index.php(9): Slim\App->run() #13 {main} thrown in /home1/plugmatt/public_html/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php on line 43