diff --git a/src/service/event.batch.service.ts b/src/service/event.batch.service.ts
index 996bf36..af7faec 100644
--- a/src/service/event.batch.service.ts
+++ b/src/service/event.batch.service.ts
@@ -1,5 +1,5 @@
 import { IChain } from "chain/allchain";
-import { batchEthLogs, ethBlockNumber, ethGetLogs, retryEthBlockNumber } from "chain/chain.api";
+import { batchEthLogs, ethGetLogs, retryEthBlockNumber } from "chain/chain.api";
 import logger from "logger/logger";
 import { GeneralEvent } from "models/GeneralEvent";
 
@@ -17,8 +17,6 @@ let eventProcessers = {
   NftStake: NftStake
 }
 
-const MAX_TOPICS = 4
-
 export class EventBatchSvr {
   chainCfg: IChain
   eventCfgs: IEventCfg[] = []
@@ -176,4 +174,4 @@ export class EventBatchSvr {
     }
     return blockNumber
   }
-}
\ No newline at end of file
+}
diff --git a/start_dev.json b/start_dev.json
index 9c64510..fcd4183 100644
--- a/start_dev.json
+++ b/start_dev.json
@@ -5,7 +5,6 @@
       "script": "./dist/api.js",
       "cwd": "/root/code/web_chain_client",
       "max_memory_restart": "1024M",
-      "log_date_format": "YYYY-MM-DD HH:mm Z",
       "watch": false,
       "ignore_watch": ["node_modules", "logs", "fixtures", "tasks"],
       "instances": 1,
@@ -23,7 +22,6 @@
       "script": "./dist/scriptions.js",
       "cwd": "/root/code/web_chain_client",
       "max_memory_restart": "1024M",
-      "log_date_format": "YYYY-MM-DD HH:mm Z",
       "watch": false,
       "ignore_watch": ["node_modules", "logs", "fixtures", "tasks"],
       "instances": 1,
@@ -41,7 +39,6 @@
       "script": "./dist/events.js",
       "cwd": "/root/code/web_chain_client",
       "max_memory_restart": "1024M",
-      "log_date_format": "YYYY-MM-DD HH:mm Z",
       "watch": false,
       "ignore_watch": ["node_modules", "logs", "fixtures", "tasks"],
       "instances": 1,