diff --git a/src/Plugin/facets/processor/TranslateEntityAggregatedFieldProcessor.php b/src/Plugin/facets/processor/TranslateEntityAggregatedFieldProcessor.php
index c31a7db..f2d1154 100644
--- a/src/Plugin/facets/processor/TranslateEntityAggregatedFieldProcessor.php
+++ b/src/Plugin/facets/processor/TranslateEntityAggregatedFieldProcessor.php
@@ -130,7 +130,7 @@ class TranslateEntityAggregatedFieldProcessor extends ProcessorPluginBase implem
       foreach ($field->getConfiguration()['fields'] as $field_configuration) {
         $parts = explode(':', $field_configuration);
         if ($parts[0] !== 'entity') {
-          throw new \InvalidArgumentException('Data type must be in the form of "entity:ENTITY_TYPE:BUNDLE."');
+          throw new \InvalidArgumentException('Data type must be in the form of "entity:ENTITY_TYPE/FIELD_NAME."');
         }
         $parts = explode('/', $parts[1]);
         $entity_type_id = $parts[0];
@@ -139,7 +139,7 @@ class TranslateEntityAggregatedFieldProcessor extends ProcessorPluginBase implem
 
         $definition_update_manager = \Drupal::entityDefinitionUpdateManager();
         $field_storage = $definition_update_manager->getFieldStorageDefinition($field, $entity_type_id);
-        if ($field_storage->getType() === 'entity_reference') {
+        if ($field_storage && $field_storage->getType() === 'entity_reference') {
           /** @var \Drupal\facets\Result\ResultInterface $result */
           $ids = [];
           foreach ($results as $delta => $result) {