diff --git a/web-ui/src/app/app.component.ts b/web-ui/src/app/app.component.ts
index 1c05f71..9fc1626 100644
--- a/web-ui/src/app/app.component.ts
+++ b/web-ui/src/app/app.component.ts
@@ -35,6 +35,7 @@ export class AppComponent {
 
       // messages
       'message.serverUnavailable': 'The server unavailable, please try again in a minute',
+      'message.unknownError': 'Unknown error, please try again in a minute',
 
       // actions
       'action.find': 'Find',
diff --git a/web-ui/src/app/services/error.service.ts b/web-ui/src/app/services/error.service.ts
index a7a5051..3996a24 100644
--- a/web-ui/src/app/services/error.service.ts
+++ b/web-ui/src/app/services/error.service.ts
@@ -33,8 +33,8 @@ export class ErrorService {
           this.setFieldError(form, fieldName, message);
         }
       } else {
-        const message = element.message;
-        this.notificationService.error(message);
+        this.translateService.get(element.message || 'message.unknownErrors')
+          .subscribe(msg => this.notificationService.error(msg));
       }
     });
   }