Slim Application Error

The application could not run because of the following error:

Details

Type: Schema\NetworkException
Message: Unable to execute request (POST "\/carts"): Connection closed
File: /srv/app/soon-the-sun/htdocs/vendor/schemaio/schema-php-client/lib/Connection.php
Line: 126

Trace

#0 /srv/app/soon-the-sun/htdocs/vendor/schemaio/schema-php-client/lib/Connection.php(111): Schema\Connection->request_write(Array)
#1 /srv/app/soon-the-sun/htdocs/vendor/schemaio/schema-php-client/lib/Client.php(182): Schema\Connection->request('post', '/carts', Array)
#2 /srv/app/soon-the-sun/htdocs/vendor/schemaio/schema-php-client/lib/Client.php(340): Schema\Client->request('post', '/carts', Array)
#3 /srv/app/soon-the-sun/htdocs/src/Basket.php(92): Schema\Client->post('/carts', Array)
#4 /srv/app/soon-the-sun/htdocs/src/Basket.php(24): SoonTheSun\Basket->create()
#5 /srv/app/soon-the-sun/htdocs/index.php(39): SoonTheSun\Basket->__construct(Object(Schema\Client), Object(SoonTheSun\CookieSession))
#6 /srv/app/soon-the-sun/htdocs/vendor/pimple/pimple/src/Pimple/Container.php(113): SoonTheSun\{closure}(Object(Slim\Container))
#7 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/Container.php(123): Pimple\Container->offsetGet('basket')
#8 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/Container.php(172): Slim\Container->get('basket')
#9 /srv/app/soon-the-sun/htdocs/src/Routes.php(56): Slim\Container->__get('basket')
#10 [internal function]: SoonTheSun\Routes->SoonTheSun\{closure}(Object(Slim\Http\Request), Object(Slim\Http\Response), Array)
#11 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php(41): call_user_func(Object(Closure), Object(Slim\Http\Request), Object(Slim\Http\Response), Array)
#12 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/Route.php(344): Slim\Handlers\Strategies\RequestResponse->__invoke(Object(Closure), Object(Slim\Http\Request), Object(Slim\Http\Response), Array)
#13 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(122): Slim\Route->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response))
#14 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/Route.php(316): Slim\Route->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))
#15 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/App.php(476): Slim\Route->run(Object(Slim\Http\Request), Object(Slim\Http\Response))
#16 /srv/app/soon-the-sun/htdocs/vendor/oscarotero/psr7-middlewares/src/Middleware/TrailingSlash.php(63): Slim\App->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response))
#17 [internal function]: Psr7Middlewares\Middleware\TrailingSlash->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App))
#18 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/DeferredCallable.php(43): call_user_func_array(Object(Psr7Middlewares\Middleware\TrailingSlash), Array)
#19 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App))
#20 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(73): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App))
#21 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(122): Slim\App->Slim\{closure}(Object(Slim\Http\Request), Object(Slim\Http\Response))
#22 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/App.php(370): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))
#23 /srv/app/soon-the-sun/htdocs/vendor/slim/slim/Slim/App.php(295): Slim\App->process(Object(Slim\Http\Request), Object(Slim\Http\Response))
#24 /srv/app/soon-the-sun/htdocs/index.php(91): Slim\App->run()
#25 {main}