diff --git a/src/Resolver/Location/FindParentStrategy.php b/src/Resolver/Location/FindParentStrategy.php
index 58b78ea2..76d879b6 100644
--- a/src/Resolver/Location/FindParentStrategy.php
+++ b/src/Resolver/Location/FindParentStrategy.php
@@ -15,10 +15,12 @@
 
 namespace Pimcore\Bundle\DataImporterBundle\Resolver\Location;
 
+use Exception;
 use Pimcore\Bundle\DataImporterBundle\Exception\InvalidConfigurationException;
 use Pimcore\Bundle\DataImporterBundle\Exception\InvalidInputException;
 use Pimcore\Bundle\DataImporterBundle\Tool\DataObjectLoader;
 use Pimcore\Model\DataObject;
+use Pimcore\Model\DataObject\AbstractObject;
 use Pimcore\Model\DataObject\ClassDefinition;
 use Pimcore\Model\Element\ElementInterface;
 
@@ -134,25 +136,28 @@ public function updateParent(ElementInterface $element, array $inputData): Eleme
         }
 
         if ($newParent) {
-            if ($newParent->getType() === DataObject::OBJECT_TYPE_VARIANT) {
+            if ($newParent->getType() === AbstractObject::OBJECT_TYPE_VARIANT) {
                 throw new InvalidInputException(
                     'The elements desired parent is a variant which cannot have any child elements'
                 );
             }
 
-            // Check if element should be saved as a variant.
-            if (
-                $this->saveAsVariant
-                && $element instanceof DataObject\Concrete
-                && $element::class === $newParent::class
-                && $element->getClass()->getAllowVariants()
-                && !$element->hasChildren()
-            ) {
-                /** @var DataObject\Concrete $element */
-                $element->setType(DataObject::OBJECT_TYPE_VARIANT);
+            try {
+                // Check if element should be saved as a variant.
+                if (
+                    $this->saveAsVariant
+                    && $element instanceof DataObject\Concrete
+                    && $element::class === $newParent::class
+                    && !$element->hasChildren()
+                    && $element->getClass()->getAllowVariants()
+                ) {
+                    $element->setType(AbstractObject::OBJECT_TYPE_VARIANT);
+                }
+
+                return $element->setParent($newParent);
+            } catch (Exception) {
+                // Exception might be thrown by $element->getClass().
             }
-
-            return $element->setParent($newParent);
         }
 
         return $element;
diff --git a/src/Resolver/Resolver.php b/src/Resolver/Resolver.php
index 17e9aee8..c4da3707 100644
--- a/src/Resolver/Resolver.php
+++ b/src/Resolver/Resolver.php
@@ -20,7 +20,7 @@
 use Pimcore\Bundle\DataImporterBundle\Resolver\Load\LoadStrategyInterface;
 use Pimcore\Bundle\DataImporterBundle\Resolver\Location\LocationStrategyInterface;
 use Pimcore\Bundle\DataImporterBundle\Resolver\Publish\PublishStrategyInterface;
-use Pimcore\Model\DataObject;
+use Pimcore\Model\DataObject\AbstractObject;
 use Pimcore\Model\Element\ElementInterface;
 
 class Resolver
@@ -136,6 +136,9 @@ public function loadElementByIdentifier($identifier): ?ElementInterface
         return $this->getLoadingStrategy()->loadElementByIdentifier($identifier);
     }
 
+    /**
+     * @throws InvalidInputException
+     */
     public function loadOrCreateAndPrepareElement(array $inputData, bool $createNew = true): ?ElementInterface
     {
         $element = $this->loadElement($inputData);
@@ -155,7 +158,10 @@ public function loadOrCreateAndPrepareElement(array $inputData, bool $createNew
             $this->getLocationUpdateStrategy()->updateParent($element, $inputData);
 
             // The parent of a variant cannot be changed anymore.
-            if ($oldParentId !== $element->getParentId() && $element->getType() === DataObject::OBJECT_TYPE_VARIANT) {
+            if (
+                $oldParentId !== $element->getParentId()
+                && $element->getType() === AbstractObject::OBJECT_TYPE_VARIANT
+            ) {
                 throw new InvalidInputException(
                     "Element with id `{$element->getId()}` is a variant and cannot change its parent anymore"
                 );