Slim Application Error

The application could not run because of the following error:

Details

Type: RuntimeException
Message: View cannot render `themes//index.php` because the template does not exist
File: /app/vendor/slim/php-view/src/PhpRenderer.php
Line: 189

Trace

#0 /app/vendor/slim/php-view/src/PhpRenderer.php(69): Slim\Views\PhpRenderer->fetch('themes//index.p...', Array)
#1 /app/public/src/routes.php(58): Slim\Views\PhpRenderer->render(Object(Slim\Http\Response), 'themes//index.p...', Array)
#2 [internal function]: Closure->{closure}(Object(Slim\Http\Request), Object(Slim\Http\Response), Array)
#3 /app/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php(40): call_user_func(Object(Closure), Object(Slim\Http\Request), Object(Slim\Http\Response), Array)
#4 /app/vendor/slim/slim/Slim/Route.php(281): Slim\Handlers\Strategies\RequestResponse->__invoke(Object(Closure), Object(Slim\Http\Request), Object(Slim\Http\Response), Array)
#5 /app/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\Route->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response))
#6 /app/vendor/slim/slim/Slim/Route.php(268): Slim\Route->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))
#7 /app/vendor/slim/slim/Slim/App.php(503): Slim\Route->run(Object(Slim\Http\Request), Object(Slim\Http\Response))
#8 /app/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response))
#9 /app/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))
#10 /app/vendor/slim/slim/Slim/App.php(297): Slim\App->process(Object(Slim\Http\Request), Object(Slim\Http\Response))
#11 /app/public/index.php(39): Slim\App->run()
#12 {main}