diff --git a/src/main/java/com/m2pool/lease/service/impl/LeaseOrderInfoServiceImpl.java b/src/main/java/com/m2pool/lease/service/impl/LeaseOrderInfoServiceImpl.java
index 9a76b88..a50a493 100644
--- a/src/main/java/com/m2pool/lease/service/impl/LeaseOrderInfoServiceImpl.java
+++ b/src/main/java/com/m2pool/lease/service/impl/LeaseOrderInfoServiceImpl.java
@@ -1020,7 +1020,12 @@ public class LeaseOrderInfoServiceImpl extends ServiceImpl<LeaseOrderInfoMapper,
            return errors.toString();
        }
        for (OrderMiningInfoDto addressInfo : orderMiningInfoDtoList) {
-          if (!WalletRuleCheckUtils.checkAddress(addressInfo.getCoin(),addressInfo.getWalletAddress())){
+           String coin = addressInfo.getCoin();
+           String walletAddress = addressInfo.getWalletAddress();
+           if(coin.equalsIgnoreCase("NEXA") && walletAddress.startsWith("nexa:")){
+               addressInfo.setWalletAddress(walletAddress.substring(5));
+          }
+          if (!WalletRuleCheckUtils.checkAddress(coin,walletAddress)){
               addressVerify = addressInfo.getWalletAddress() + "钱包地址格式错误";
               break;
           }
@@ -1141,16 +1146,19 @@ public class LeaseOrderInfoServiceImpl extends ServiceImpl<LeaseOrderInfoMapper,
 
 
         //根据钱包 + 币种 + 矿工号 查询 pool 库 pool.kryptex 表 中对应 算力
-        Map<String, MiningHashrateInfoDto> recentlyHashRateMap = leaseOrderMiningMapper
-                .getRecentlyHashrate(info.getPool(), info.getWalletAddress(), info.getCoin(), list);
-        for (PurchasedMachineDto purchasedMachineDto : list) {
-            MiningHashrateInfoDto miningHashrateInfoDto = recentlyHashRateMap.get(purchasedMachineDto.getWorkerId());
-            if (miningHashrateInfoDto != null){
-                purchasedMachineDto.setRecordTime(miningHashrateInfoDto.getRecordTime());
-                purchasedMachineDto.setPower(miningHashrateInfoDto.getPower());
+        if (list != null && !list.isEmpty()){
+            Map<String, MiningHashrateInfoDto> recentlyHashRateMap = leaseOrderMiningMapper
+                    .getRecentlyHashrate(info.getPool(), info.getWalletAddress(), info.getCoin(), list);
+            for (PurchasedMachineDto purchasedMachineDto : list) {
+                MiningHashrateInfoDto miningHashrateInfoDto = recentlyHashRateMap.get(purchasedMachineDto.getWorkerId());
+                if (miningHashrateInfoDto != null){
+                    purchasedMachineDto.setRecordTime(miningHashrateInfoDto.getRecordTime());
+                    purchasedMachineDto.setPower(miningHashrateInfoDto.getPower());
+                }
             }
         }
 
+
         info.setPurchasedMachines(list);
         return Result.success(info);
     }