fix(Calendar): null attachment

config/packages/sentry.yaml

@@ -4,8 +4,6 @@ when@prod:
         register_error_handler: true # Disables the ErrorListener, ExceptionListener and FatalErrorListener integrations of the base PHP SDK
 
         options:
-            release: '%app.version%'
-            environment: '%env(APP_ENV)%'
             traces_sample_rate: 1
             profiles_sample_rate: 1
             attach_stacktrace: true

src/Monitor/Framework/Controller/CalendarController.php

@@ -29,10 +29,13 @@ class CalendarController extends AbstractController
 
         $monitors = $monitorRepository->whereAirDateNotNull();
         $calendar->event(Map::from($monitors)->map(function (Monitor $monitor) {
-            return new Event($monitor->getTitle())
+            $event = new Event($monitor->getTitle())
                 ->startsAt($monitor->getAirDate())
-                ->attachment($monitor->getPoster())
                 ->fullDay();
+            if (null !== $monitor->getPoster()) {
+                $event->attachment($monitor->getPoster());
+            }
+            return $event;
         })->toArray());
 
         return new Response($calendar->get(), 200, [