In UnionType.php line 54:

  [Symfony\Component\TypeInfo\Exception\InvalidArgumentException]
  Cannot create union with "mixed" standalone type.

Exception trace:
  at /app/vendor/symfony/type-info/Type/UnionType.php:54
 Symfony\Component\TypeInfo\Type\UnionType->__construct() at /app/vendor/symfony/type-info/TypeFactoryTrait.php:296
 Symfony\Component\TypeInfo\Type::union() at /app/vendor/symfony/type-info/TypeResolver/StringTypeResolver.php:226
 Symfony\Component\TypeInfo\TypeResolver\StringTypeResolver->getTypeFromNode() at /app/vendor/symfony/type-info/TypeResolver/StringTypeResolver.php:192
 Symfony\Component\TypeInfo\TypeResolver\StringTypeResolver->Symfony\Component\TypeInfo\TypeResolver\{closure}() at n/a:n/a
 array_map() at /app/vendor/symfony/type-info/TypeResolver/StringTypeResolver.php:192
 Symfony\Component\TypeInfo\TypeResolver\StringTypeResolver->getTypeFromNode() at /app/vendor/symfony/type-info/TypeResolver/StringTypeResolver.php:86
 Symfony\Component\TypeInfo\TypeResolver\StringTypeResolver->resolve() at /app/vendor/symfony/property-info/Extractor/PhpStanExtractor.php:217
 Symfony\Component\PropertyInfo\Extractor\PhpStanExtractor->getType() at /app/vendor/symfony/property-info/PropertyInfoExtractor.php:96
 Symfony\Component\PropertyInfo\PropertyInfoExtractor->extract() at /app/vendor/symfony/property-info/PropertyInfoExtractor.php:62
 Symfony\Component\PropertyInfo\PropertyInfoExtractor->getType() at /app/vendor/symfony/serializer/Normalizer/AbstractObjectNormalizer.php:992
 Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer->getPropertyType() at /app/vendor/symfony/serializer/Normalizer/AbstractObjectNormalizer.php:962
 Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer->getType() at /app/vendor/symfony/serializer/Normalizer/AbstractObjectNormalizer.php:929
 Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer->denormalizeParameter() at /app/vendor/symfony/serializer/Normalizer/AbstractNormalizer.php:374
 Symfony\Component\Serializer\Normalizer\AbstractNormalizer->instantiateObject() at /app/vendor/symfony/serializer/Normalizer/AbstractObjectNormalizer.php:243
 Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer->instantiateObject() at /app/vendor/symfony/serializer/Normalizer/AbstractObjectNormalizer.php:339
 Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer->denormalize() at /app/vendor/guikingone/scheduler-bundle/src/Serializer/TaskNormalizer.php:289
 SchedulerBundle\Serializer\TaskNormalizer->denormalize() at /app/vendor/symfony/serializer/Serializer.php:238
 Symfony\Component\Serializer\Serializer->denormalize() at /app/vendor/symfony/serializer/Serializer.php:143
 Symfony\Component\Serializer\Serializer->deserialize() at /app/vendor/guikingone/scheduler-bundle/src/Transport/CacheTransport.php:70
 SchedulerBundle\Transport\CacheTransport->get() at /app/vendor/guikingone/scheduler-bundle/src/Scheduler.php:76
 SchedulerBundle\Scheduler->schedule() at /app/var/cache/dev/ContainerSU4h0yA/App_KernelDevDebugContainer.php:24286
 ContainerSU4h0yA\App_KernelDevDebugContainer::getSchedulerService() at /app/var/cache/dev/ContainerSU4h0yA/App_KernelDevDebugContainer.php:13641
 ContainerSU4h0yA\App_KernelDevDebugContainer::getConsumeTasksCommandService() at /app/var/cache/dev/ContainerSU4h0yA/App_KernelDevDebugContainer.php:5245
 ContainerSU4h0yA\App_KernelDevDebugContainer::ContainerSU4h0yA\{closure}() at /app/vendor/symfony/console/Command/LazyCommand.php:189
 Symfony\Component\Console\Command\LazyCommand->getCommand() at /app/vendor/symfony/console/Application.php:338
 Symfony\Component\Console\Application->doRun() at /app/vendor/symfony/framework-bundle/Console/Application.php:77
 Symfony\Bundle\FrameworkBundle\Console\Application->doRun() at /app/vendor/symfony/console/Application.php:193
 Symfony\Component\Console\Application->run() at /app/bin/console:43

    /**
     * @var array<string, mixed|bool|string|float|int|DateTimeImmutable|DateTimeZone|DateInterval|NotificationTaskBag|null>
     */
    protected array $options = [];