diff --git a/package.json b/package.json
index 9db6342..f57a702 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ora-stack",
-  "version": "0.3.4",
+  "version": "0.3.5",
   "private": true,
   "packageManager": "pnpm@9.7.0",
   "description": "",
diff --git a/packages/orap/package.json b/packages/orap/package.json
index 229f912..d6e58f9 100644
--- a/packages/orap/package.json
+++ b/packages/orap/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@ora-io/orap",
   "type": "module",
-  "version": "0.3.4",
+  "version": "0.3.5",
   "packageManager": "pnpm@8.10.5",
   "description": "",
   "author": "Norman (nom4dv3), MuRong",
diff --git a/packages/reku/package.json b/packages/reku/package.json
index d8e9ca2..10ade28 100644
--- a/packages/reku/package.json
+++ b/packages/reku/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@ora-io/reku",
   "type": "module",
-  "version": "0.3.5",
+  "version": "0.3.7",
   "packageManager": "pnpm@8.10.5",
   "description": "",
   "author": "Norman (nom4dv3), MuRong",
diff --git a/packages/reku/src/event/crosschecker/autochecker.ts b/packages/reku/src/event/crosschecker/autochecker.ts
index e953cb0..541a363 100644
--- a/packages/reku/src/event/crosschecker/autochecker.ts
+++ b/packages/reku/src/event/crosschecker/autochecker.ts
@@ -92,6 +92,7 @@ export class AutoCrossChecker extends BaseCrossChecker {
 
     const waitNextCrosscheck = async (): Promise<boolean> => {
       latestBlockNum = await timeoutWithRetry(() => {
+        // console.log(this.provider, this.provider.provider)
         if (!this.provider || !this.provider.provider)
           throw new Error('provider not ready')
         return this.provider.provider?.getBlockNumber()
@@ -143,19 +144,27 @@ export class AutoCrossChecker extends BaseCrossChecker {
 
     // TODO: replace polling with schedule cron
     await polling(async () => {
-      const wait = await waitOrUpdateToBlock()
-      debug('polling interval: %d, wait: %s, from block: %d, to block: %d', pollingInterval, wait, ccrOptions.fromBlock, ccrOptions.toBlock)
-      if (wait) {
-        await this.crossCheckRange(ccrOptions)
-        // only update options after cc succ
-        await updateCCROptions(ccrOptions)
+      try {
+        debug('start polling')
+        const wait = await waitOrUpdateToBlock()
+        debug('polling interval: %d, wait: %s, from block: %d, to block: %d', pollingInterval, wait, ccrOptions.fromBlock, ccrOptions.toBlock)
+        if (wait) {
+          await this.crossCheckRange(ccrOptions)
+          // only update options after cc succ
+          await updateCCROptions(ccrOptions)
+        }
+        else {
+          debug('Because the latest block %d is too old, skip this cross check', latestBlockNum)
+        }
+        debug('end condition')
+        const end = endingCondition()
+        debug('polling ending condition: %s', end)
+        return end
       }
-      else {
-        debug('Because the latest block %d is too old, skip this cross check', latestBlockNum)
+      catch (error) {
+        debug('polling error', error)
+        return false
       }
-      const end = endingCondition()
-      debug('polling ending condition: %s', end)
-      return end
     }, pollingInterval)
   }