diff --git a/server/web3bcspider/blockchain.js b/server/web3bcspider/blockchain.js
index 772eb80..75eb18d 100644
--- a/server/web3bcspider/blockchain.js
+++ b/server/web3bcspider/blockchain.js
@@ -40,11 +40,25 @@ class BlockChain {
     this.web3.eth.handleRevert = true;
     this.web3.eth.accounts.wallet.add(this.getPrivateKey());
     for (const data of this.contractsConf) {
-      this[`${data.name}Instance`] = await this.initInstance
-      (this.getUserAddress(), data.address, this.netDir + data.json);
+      try {
+        this[`${data.name}Instance`] = await this.initInstance
+        (this.getUserAddress(), data.address, this.netDir + data.json);
+      } catch (err) {
+        if (utils.isOnlineEnv()) {
+          throw new Error(err);
+        } else {
+          if (data.name == 'AridropNft') {
+            log.warning('load contract file error:' + err);
+          }
+        }
+      }
     }
     const chainId = await this.web3.eth.getChainId();
     if (chainId != this.netId) {
+      throw new Error(util.format('net id error %s %s',
+                                  chainId,
+                                  this.netId
+                                 ));
       log.warning(util.format('net id error %s %s',
                               chainId,
                               this.netId
diff --git a/server/web3bcspider/metadata/factory.js b/server/web3bcspider/metadata/factory.js
index 542d8b8..e1858b4 100644
--- a/server/web3bcspider/metadata/factory.js
+++ b/server/web3bcspider/metadata/factory.js
@@ -23,6 +23,14 @@ function registerMetaClass(fileName, primKey, wrapClass) {
   metaClasses[wrapClass] = metaClass;
 }
 
+function checkNetData(net) {
+  net['Events'].forEach(
+    (item) => {
+      console.log(item);
+    }
+  );
+}
+
 function load() {
   metaClassList.forEach((metaClass) => {
     const json = utils.readJsonFromFile(metaClass['fileName']);
@@ -126,6 +134,7 @@ async function init() {
             'refresh_erc1155': net['refresh_erc1155'],
             'refresh_erc20': net['refresh_erc20'],
           };
+          checkNetData(web3ConfHash[netId]);
         });
       }
     });
diff --git a/third_party/becrypto b/third_party/becrypto
index 727a3ff..e294ca4 160000
--- a/third_party/becrypto
+++ b/third_party/becrypto
@@ -1 +1 @@
-Subproject commit 727a3ffd5c809eced13837594ac9288415b0118b
+Subproject commit e294ca4ebe3c603359c8dd349590f336a94383c1