diff --git a/webapp/controller/HashRateShopController.class.php b/webapp/controller/HashRateShopController.class.php
index 1892c64e..6376fd1c 100644
--- a/webapp/controller/HashRateShopController.class.php
+++ b/webapp/controller/HashRateShopController.class.php
@@ -78,11 +78,12 @@ class HashRateShopController extends BaseAuthedController {
             myself()->_rspErr(1, "config error");
             return;
         }
-        if ($price * $goodsNum < models\HashRate::getMyCurrentHashRate()) {
+        if ($price * $goodsNum > models\HashRate::getMyCurrentHashRate()) {
             myself()->_rspErr(2, "hashrate not enough");
             return;
         }
         models\HashRate::decMyCurrentHashRate($price * $goodsNum);
+        error_log(models\HashRate::getMyCurrentHashRate());
         models\HashRateShopBuyRecord::add($goodsMeta['id'], $goodsNum, $goodsMeta['type']);
         for ($i = 0; $i < $goodsNum; $i++) {
             $this->internalAddItem($awardService,
diff --git a/webapp/services/HashRateShopService.php b/webapp/services/HashRateShopService.php
index cffa0b80..2b6a3c21 100644
--- a/webapp/services/HashRateShopService.php
+++ b/webapp/services/HashRateShopService.php
@@ -49,7 +49,6 @@ class HashRateShopService {
                 case mt\HashRateShop::WEEKLY_BUY_LIMIT: {
                     $buyRecord = getXVal($buyRecordHash, $goodsMeta['id']);
                     $goodsDto['purchased_num'] = $buyRecord ? $buyRecord['this_week_buy_times'] : 0;
-                    error_log(json_encode($goodsDto));
                     if ($buyRecord && $goodsDto['purchased_num'] > 0 &&
                         $goodsDto['purchased_num'] >= $goodsDto['max_num']) {
                         $goodsDto['count_down'] = myself()->_getMondaySeconds() + 3600 * 24 * 7 -  myself()->_getNowTime();
@@ -97,9 +96,6 @@ class HashRateShopService {
                 case mt\HashRateShop::DAILY_BUY_LIMIT: {
                     $buyRecord = getXVal($buyRecordHash, $goodsId);
                     $boughtTimes = $buyRecord ? $buyRecord['this_day_buy_times'] + $goodsNum : 1;
-                    error_log(json_encode(array(
-                        'boughtTimes' => $boughtTimes
-                    )));
                     if ($buyRecord && getXVal($buyRecord, 'this_day_buy_times', 0) >= $goodsMeta['limit_num']) {
                         $errCode = 2;
                         $errMsg = 'Daily purchase limit';
@@ -110,10 +106,6 @@ class HashRateShopService {
                 case mt\HashRateShop::WEEKLY_BUY_LIMIT: {
                     $buyRecord = getXVal($buyRecordHash, $goodsId);
                     $boughtTimes = $buyRecord ? $buyRecord['this_week_buy_times'] + $goodsNum : 1;
-                    error_log(json_encode(array(
-                        'buyRecordHash' =>$buyRecordHash,
-                        'boughtTimes' => $boughtTimes
-                    )));
                     if ($buyRecord && getXVal($buyRecord, 'this_week_buy_times', 0) >= $goodsMeta['limit_num']) {
                         $errCode = 2;
                         $errMsg = 'Weekly purchase limit reached';