diff --git a/src/Controller/AdminPages/BaseAdminController.php b/src/Controller/AdminPages/BaseAdminController.php
index 70e82981..3f6b78da 100644
--- a/src/Controller/AdminPages/BaseAdminController.php
+++ b/src/Controller/AdminPages/BaseAdminController.php
@@ -368,7 +368,11 @@ abstract class BaseAdminController extends AbstractController
 
             //Show errors to user:
             foreach ($errors as $error) {
-                $this->addFlash('error', $error['entity']->getFullPath().':'.$error['violations']);
+                if ($error['entity'] instanceof AbstractStructuralDBElement) {
+                    $this->addFlash('error', $error['entity']->getFullPath().':'.$error['violations']);
+                } else { //When we dont have a structural element, we can only show the name
+                    $this->addFlash('error', $error['entity']->getName().':'.$error['violations']);
+                }
             }
 
             //Persist valid entities to DB
diff --git a/templates/AdminPages/EntityAdminBase.html.twig b/templates/AdminPages/EntityAdminBase.html.twig
index 27fb809b..9e8d4de4 100644
--- a/templates/AdminPages/EntityAdminBase.html.twig
+++ b/templates/AdminPages/EntityAdminBase.html.twig
@@ -175,12 +175,12 @@
                                     </fieldset>
                                 </div>
 
-                                <div id="mass_creation" class="tab-pane fade">
-                                    <div class="row">
-                                        <p class="text-muted offset-sm-3 col-sm-9">{% trans %}mass_creation.help{% endtrans %}</p>
+                                    <div id="mass_creation" class="tab-pane fade">
+                                        <div class="row">
+                                            <p class="text-muted offset-sm-3 col-sm-9">{% trans %}mass_creation.help{% endtrans %}</p>
+                                        </div>
+                                        {{ form(mass_creation_form) }}
                                     </div>
-                                    {{ form(mass_creation_form) }}
-                                </div>
 
 
                             {% endif %}