diff --git a/loopback/locale/es.json b/loopback/locale/es.json
index 6ce4f72bc..cf5998e9d 100644
--- a/loopback/locale/es.json
+++ b/loopback/locale/es.json
@@ -334,7 +334,6 @@
 	"countryFk cannot be empty": "countryFk cannot be empty",
 	"Model is not valid": "El campo \" {{key}}\" no es válido",
 	"Property is not defined in this model": "La propiedad que ha modificado no existe",
-	"postcode": "Código postal",
 	"postCode": "Código postal",
 	"fi": "NIF/CIF",
 	"nif": "NIF/CIF",
@@ -348,5 +347,10 @@
 	"healthRegister":"Registro sanitario",
 	"sageTaxTypeFk":"Tipo de impuesto Sage",
 	"sageTransactionTypeFk":"Tipo de transacción Sage",
-    "sageWithholdingFk" : "Sage con tenencia"
+    "sageWithholdingFk" : "Sage con tenencia",
+	"Cannot past travels with entries": "No se pueden pasar envíos con entradas",
+	"It was not able to remove the next expeditions:": "No se pudo eliminar las siguientes expediciones: {{expeditions}}",
+	"Field are invalid": "El campo {{tag}} no es válido",
+	"postcode": "Código postal"
 }
+
diff --git a/loopback/server/middleware/error-handler.js b/loopback/server/middleware/error-handler.js
index 725826ae7..0c53d9e8b 100644
--- a/loopback/server/middleware/error-handler.js
+++ b/loopback/server/middleware/error-handler.js
@@ -1,6 +1,9 @@
 const UserError = require('../../util/user-error');
 const logToConsole = require('strong-error-handler/lib/logger');
-
+const validations = [{
+    validation: message => String(message).startsWith('Value is not'),
+    message: ({__: $t, body}) => $t('Field are invalid', {tag: $t(Object.keys(body)[0])})
+}];
 module.exports = function() {
     return function(err, req, res, next) {
         // Thrown user errors
@@ -10,6 +13,16 @@ module.exports = function() {
         }
 
         // Validation errors
+        if (err.statusCode == 400) {
+            try {
+                validations.forEach(validation => {
+                    err.message = validation.validation(err.message) && validation.message(req);
+                });
+
+                return next(err);
+            } catch (e) {
+            }
+        }
         if (err.statusCode == 422) {
             try {
                 let code;