diff --git a/app/models/metadata_file.rb b/app/models/metadata_file.rb
index b4b144e..80cefa2 100644
--- a/app/models/metadata_file.rb
+++ b/app/models/metadata_file.rb
@@ -16,6 +16,7 @@ class MetadataFile < MetadataTemplate
   def validate
     super
 
+    errors << I18n.t("metadata.#{type}.site_invalid") if site.invalid?
     errors << I18n.t("metadata.#{type}.path_required") if path_missing?
     errors << I18n.t("metadata.#{type}.no_file_for_description") if no_file_for_description?
 
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 02570b1..94ab7e5 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -34,10 +34,12 @@ en:
   metadata:
     cant_be_empty: 'This field cannot be empty'
     image:
+      site_invalid: 'The image cannot be stored if the site configuration is not valid'
       not_an_image: 'Not an image'
       path_required: 'Missing image for upload'
       no_file_for_description: "There's a description with no associated image"
     file:
+      site_invalid: 'The file cannot be stored if the site configuration is not valid'
       path_required: "Missing file for upload"
       no_file_for_description: "There's a description with no associated file"
     event:
diff --git a/config/locales/es.yml b/config/locales/es.yml
index 5bb4a22..6d84d7e 100644
--- a/config/locales/es.yml
+++ b/config/locales/es.yml
@@ -34,10 +34,12 @@ es:
   metadata:
     cant_be_empty: 'El campo no puede estar vacío'
     image:
+      site_invalid: 'La imagen no se puede almacenar si la configuración del sitio no es válida'
       not_an_image: 'No es una imagen'
       path_required: 'Se necesita una imagen'
       no_file_for_description: 'Se envió una descripción sin imagen asociada'
     file:
+      site_invalid: 'El archivo no se puede almacenar si la configuración del sitio no es válida'
       path_required: 'Se necesita un archivo'
       no_file_for_description: 'se envió una descripción sin archivo asociado'
     event: