bug fixes

frontend/src/views/Detection.jsx

@@ -136,7 +136,7 @@ const Detection = ({
       });
   };
 
-  const filteredRules = ruleInfo.filter((rule) =>
+  const filteredRules = ruleInfo?.filter((rule) =>
     rule.title.toLowerCase().includes(searchQuery.toLowerCase()) ||
     rule.description.toLowerCase().includes(searchQuery.toLowerCase())
   );
@@ -218,7 +218,7 @@ const Detection = ({
             p: 1,
           }}
         >
-          {filteredRules.length > 0 &&
+          {filteredRules?.length > 0 &&
             filteredRules.map((card) => (
               <RuleCard
                 key={card.file_id}

frontend/src/views/DetectionDashboard.jsx

@@ -46,7 +46,7 @@ const DetectionDashBoard = (props) => {
   }, [folderDisabled]);
 
   useEffect(() => {
-    if (ruleInfo.length > 0) {
+    if (ruleInfo?.length > 0) {
       openEditBar(ruleInfo[0]);
     }
   }, [ruleInfo]);