diff --git a/dashboard/pages/api/metric.ts b/dashboard/pages/api/metric.ts
index acb4e14ee6103..43a483181a74c 100644
--- a/dashboard/pages/api/metric.ts
+++ b/dashboard/pages/api/metric.ts
@@ -24,7 +24,6 @@ export interface BackPressuresMetrics {
 
 // Get back pressure from meta node -> prometheus
 export async function getActorBackPressures() {
-  console.log("send api")
   const res: BackPressuresMetrics = await api.get(
     "/metrics/actor/back_pressures"
   )
@@ -68,7 +67,7 @@ function convertToMapAndAgg(
 
   for (const [key, value] of mapValue) {
     // add || 1 to avoid NaN and pass check
-    map.set(key, value / mapNumber.get(key))
+    map.set(key, value / (mapNumber.get(key) || 1))
   }
   return map
 }
diff --git a/dashboard/pages/fragment_graph.tsx b/dashboard/pages/fragment_graph.tsx
index e9b5866b8a2da..f7b3764a6bf4a 100644
--- a/dashboard/pages/fragment_graph.tsx
+++ b/dashboard/pages/fragment_graph.tsx
@@ -382,7 +382,7 @@ export default function Streaming() {
 
           const value = algoFunc(m.sample) * 100
           map.set(
-            `${m.metric.fragmentId}_${m.metric.downstreamFragmentId}`,
+            `${m.metric.fragment_id}_${m.metric.downstream_fragment_id}`,
             value
           )
         }