diff --git a/htdocs/app/Http/Controllers/Controller.php b/htdocs/app/Http/Controllers/Controller.php
index 22878ac2..f31fef9c 100644
--- a/htdocs/app/Http/Controllers/Controller.php
+++ b/htdocs/app/Http/Controllers/Controller.php
@@ -90,7 +90,11 @@ class Controller extends BaseController
     }
     protected function cekInterpretasi($value, $data) {
         try {
-            if ($data->batasatas == $value){
+            if ($value === null || $data === null) {
+                
+            } else if ($value === '') {
+                
+            } else if ($data->batasatas == $value){
                 return "S";
             } else if ($data->batasbawah == $value){
                 return "R";