diff --git a/src/hooks/use-collator-last-session-blocks.ts b/src/hooks/use-collator-last-session-blocks.ts
index 4746eef..bddf945 100644
--- a/src/hooks/use-collator-last-session-blocks.ts
+++ b/src/hooks/use-collator-last-session-blocks.ts
@@ -15,27 +15,42 @@ export const useCollatorLastSessionBlocks = (defaultValue: DefaultValue) => {
   useEffect(() => {
     let unsub = () => undefined;
 
-    polkadotApi?.query.darwiniaStaking
-      .rewardPoints((points: Codec) => {
-        const [_, collatorPoints] = points.toJSON() as [number, { [address: string]: number }]; // [totalPoint, { collator: collatorPoint }]
-        const staticNumber = 20; // this staticNumber = 20 was given by the backend
-
-        setCollatorLastSessionBlocks(
-          Object.keys(collatorPoints).reduce((acc, cur) => {
-            const collatorPoint = collatorPoints[cur];
-            const blocks = collatorPoint / staticNumber;
-            return { ...acc, [cur]: blocks };
-          }, {})
-        );
-      })
-      .then((_unsub) => {
-        unsub = _unsub as unknown as typeof unsub;
-      })
-      .catch(console.error)
-      .finally(() => setIsCollatorLastSessionBlocksInitialized(true));
+    const handle = (points: Codec) => {
+      const [_, collatorPoints] = points.toJSON() as [number, { [address: string]: number }]; // [totalPoint, { collator: collatorPoint }]
+      const staticNumber = 20; // this staticNumber = 20 was given by the backend
+
+      setCollatorLastSessionBlocks(
+        Object.keys(collatorPoints).reduce((acc, cur) => {
+          const collatorPoint = collatorPoints[cur];
+          const blocks = collatorPoint / staticNumber;
+          return { ...acc, [cur]: blocks };
+        }, {})
+      );
+    };
+
+    if (polkadotApi?.query.darwiniaStaking.rewardPoints) {
+      polkadotApi.query.darwiniaStaking
+        .rewardPoints(handle)
+        .then((_unsub) => {
+          unsub = _unsub as unknown as typeof unsub;
+        })
+        .catch(console.error)
+        .finally(() => setIsCollatorLastSessionBlocksInitialized(true));
+    } else if (polkadotApi?.query.darwiniaStaking.authoredBlocksCount) {
+      polkadotApi.query.darwiniaStaking
+        .authoredBlocksCount(handle)
+        .then((_unsub) => {
+          unsub = _unsub as unknown as typeof unsub;
+        })
+        .catch(console.error)
+        .finally(() => setIsCollatorLastSessionBlocksInitialized(true));
+    } else {
+      setCollatorLastSessionBlocks(defaultValue.collatorLastSessionBlocks);
+      setIsCollatorLastSessionBlocksInitialized(false);
+    }
 
     return () => unsub();
-  }, [polkadotApi]);
+  }, [polkadotApi, defaultValue]);
 
   return { collatorLastSessionBlocks, isCollatorLastSessionBlocksInitialized };
 };
diff --git a/src/hooks/use-collator-power.ts b/src/hooks/use-collator-power.ts
index 3199f9f..a96a157 100644
--- a/src/hooks/use-collator-power.ts
+++ b/src/hooks/use-collator-power.ts
@@ -17,11 +17,31 @@ interface ExposuresJson {
   total: string;
 }
 
+interface ExposuresJsonCache {
+  nominators: { who: string; vote: string }[];
+  vote: string;
+}
+
 interface DefaultValue {
   collatorPower: { [collator: string]: bigint | undefined };
   isCollatorPowerInitialized: boolean;
 }
 
+function isExposuresJsonCache(data: any): data is ExposuresJsonCache {
+  return data.vote;
+}
+
+function formatExposuresData(data: unknown) {
+  if (isExposuresJsonCache(data)) {
+    return {
+      total: data.vote,
+      nominators: data.nominators.map(({ who, vote }) => ({ who, value: vote })),
+    } as ExposuresJson;
+  } else {
+    return data as ExposuresJson;
+  }
+}
+
 export const useCollatorPower = (
   collatorNominators: { [collator: string]: string[] | undefined },
   ringPool: bigint,
@@ -37,14 +57,16 @@ export const useCollatorPower = (
 
     if (polkadotApi) {
       sub$$ = forkJoin([
-        polkadotApi.query.darwiniaStaking.exposures.entries(),
+        polkadotApi.query.darwiniaStaking.exposures
+          ? polkadotApi.query.darwiniaStaking.exposures.entries()
+          : polkadotApi.query.darwiniaStaking.exposureCache1.entries(),
         polkadotApi.query.darwiniaStaking.ledgers.entries(),
         polkadotApi.query.deposit.deposits.entries(),
       ]).subscribe({
         next: ([exposures, ledgers, deposits]) => {
           const parsedExposures = exposures.reduce((acc, cur) => {
             const address = (cur[0].toHuman() as string[])[0];
-            const data = cur[1].toJSON() as unknown as ExposuresJson;
+            const data = formatExposuresData(cur[1].toJSON() as unknown);
             return { ...acc, [address]: data };
           }, {} as { [address: string]: ExposuresJson | undefined });