InvalidArgumentException: Malformed UTF-8 characters, possibly incorrectly encoded

Sentry Issue: PRODUCTION-BACKEND-SB

InvalidArgumentException: Malformed UTF-8 characters, possibly incorrectly encoded
  File "/src/EventSubscriber/ExceptionEventSubscriber.php", line 33, in Foodsharing\EventSubscriber\ExceptionEventSubscriber::onKernelException
    $event->setResponse(new JsonResponse([
  File "/public/index.php", line 34
    $response = $kernel->handle($request);
...
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