diff --git a/www/js/services/currency-services.js b/www/js/services/currency-services.js
index 71698462244434b3b502144e1f3f628f582b5083..ad1d994a0cc3b5f0391e5a683b0e4867ffb129ec 100644
--- a/www/js/services/currency-services.js
+++ b/www/js/services/currency-services.js
@@ -111,6 +111,7 @@ angular.module('cesium.currency.services', ['ngApi', 'cesium.bma.services'])
                 return data.currentUD;
               })
               .catch(function(err) {
+                console.error("[currency] Unable to load last block with UD, with number {0}".format(lastBlockWithUD));
                 data.currentUD = null;
                 throw err;
               });