diff -urN smeserver-manager-AdminLTE-0.1.3.old/root/usr/share/smanager/themes/AdminLTE/templates/layouts/default.html.ep smeserver-manager-AdminLTE-0.1.3/root/usr/share/smanager/themes/AdminLTE/templates/layouts/default.html.ep
--- smeserver-manager-AdminLTE-0.1.3.old/root/usr/share/smanager/themes/AdminLTE/templates/layouts/default.html.ep	2022-03-03 10:03:11.632427513 +0000
+++ smeserver-manager-AdminLTE-0.1.3/root/usr/share/smanager/themes/AdminLTE/templates/layouts/default.html.ep	2022-03-02 18:45:00.000000000 +0000
@@ -268,7 +268,7 @@
 					success: function(cssText) {
 					  const searchReg = /AdminLTE v([0-9.]{0,})/;
 					  const result = cssText.match(searchReg);  
-					  $(`.${classSelector}`).text(result[versionType == 'full' ? 0 : 1]);
+					  if (result != null){ $(`.${classSelector}`).text(result[versionType == 'full' ? 0 : 1]);}
 					}
 					});
 				}