Fixed

pandora_console/general/register.php

@@ -257,7 +257,11 @@ if (!$double_auth_enabled && $config['2FA_all_users'] != ''
       //document.location.reload();
     }
   })
-    .show();    </script>
+    .show();    
+    // Don't allow close the dialog with X button
+    $('.ui-dialog-titlebar-close').css('display', 'none');
+
+    </script>
     <?php
     echo '</div>';
 }