diff --git a/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/UserCenter/IndexInTeacher.cshtml b/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/UserCenter/IndexInTeacher.cshtml
index ca25f241b..19bb34707 100644
--- a/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/UserCenter/IndexInTeacher.cshtml	
+++ b/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/UserCenter/IndexInTeacher.cshtml	
@@ -497,7 +497,11 @@
                                 },
                                 date: function (value) {
                                     var date = new Date(value);
-                                    return date.toLocaleDateString();
+                                    if (date instanceof Date && !isNaN(date.getTime())) {
+                                        return date.toLocaleDateString();
+                                    } else {
+                                        return '';
+                                    }
                                 },
                                 company: function (value) {
                                     var result;