diff --git a/modules/cmrf_form_processor_mollie/src/EventSubscriber/MollieFormProcessorSubscriber.php b/modules/cmrf_form_processor_mollie/src/EventSubscriber/MollieFormProcessorSubscriber.php
index 6dbb994..3ed83a7 100644
--- a/modules/cmrf_form_processor_mollie/src/EventSubscriber/MollieFormProcessorSubscriber.php
+++ b/modules/cmrf_form_processor_mollie/src/EventSubscriber/MollieFormProcessorSubscriber.php
@@ -58,7 +58,7 @@ class MollieFormProcessorSubscriber implements EventSubscriberInterface {
       }
     }
     catch (\Exception $e) {
-      watchdog_exception('cmrf_form_processor_mollie', $e);
+      \Drupal\Component\Utility\DeprecationHelper::backwardsCompatibleCall(\Drupal::VERSION, '10.1.0', fn() => \Drupal\Core\Utility\Error::logException(\Drupal::logger('cmrf_form_processor_mollie'), $e), fn() => watchdog_exception('cmrf_form_processor_mollie', $e));
       $httpCode = 500;
     }
 
@@ -69,7 +69,7 @@ class MollieFormProcessorSubscriber implements EventSubscriberInterface {
   /**
    * {@inheritdoc}
    */
-  public static function getSubscribedEvents() {
+  public static function getSubscribedEvents(): array {
     return [
       MollieNotificationEvent::EVENT_NAME => 'callFormProcessor',
     ];