diff --git a/server/light_backtask/service/spec_transfer.go b/server/light_backtask/service/spec_transfer.go
index b7c5be43..e26f9d36 100644
--- a/server/light_backtask/service/spec_transfer.go
+++ b/server/light_backtask/service/spec_transfer.go
@@ -3,10 +3,7 @@ package service
 import (
 	"q5"
 	"f5"
-	"jccommon"
 	"main/constant"
-	. "main/global"
-	"fmt"
 )
 
 func UpdateSpecTransferStatus(dbIdx int64, status int32) bool {
@@ -25,216 +22,3 @@ func UpdateSpecTransferStatus(dbIdx int64, status int32) bool {
 		})
 	return dbErr == nil
 }
-
-func OpenGoldBullion(accountId string, accountAddress string, netId int32, tokenId string) bool {
-	GetTaskMgr().LockOpenGodBullion()
-	defer GetTaskMgr().UnLockOpenGodBullion()
-
-	if !AccountIdExistsAndIgnoreError(accountId) {
-		return false
-	}
-
-	var itemId int32
-	if !GetNoOpenGoldBullionItemIdByTokenId(tokenId, &itemId) {
-		return false
-	}
-	goldNum := jccommon.GetGoldBullionGoldNum(itemId)
-	if goldNum <= 0 {
-		return false
-	}
-
-	{
-		var dbErr error
-		nowTime := f5.GetApp().GetRealSeconds()
-		f5.GetGoStyleDb().Update(
-			constant.GAME_DB,
-			"t_gold_bullion",
-			[][]string {
-				{"token_id", tokenId},
-				{"status", q5.ToString(jccommon.GOLD_BULLION_NO_OPEN)},
-				},
-			[][]string {
-				{"status", q5.ToString(jccommon.GOLD_BULLION_OPENED)},
-				{"open_status", q5.ToString(jccommon.GOLD_BULLION_OPEN_STATUS_SENT)},
-				{"open_address", accountAddress},
-				{"open_time", q5.ToString(nowTime)},
-				{"open_account_id", accountId},
-			},
-			func (err error, lastInsertId int64, rowsAffected int64) {
-				dbErr = err
-			})
-		if dbErr != nil {
-			return false
-		}
-	}
-	{
-		if !UserAddGold(accountId, goldNum, netId, tokenId, constant.USER_ADD_GOLD_REASON_USE) {
-			return false
-		}
-	}
-	{
-		var dbErr error
-		f5.GetGoStyleDb().Update(
-			constant.GAME_DB,
-			"t_gold_bullion",
-			[][]string {
-				{"token_id", tokenId},
-				{"status", q5.ToString(jccommon.GOLD_BULLION_OPENED)},
-				},
-			[][]string {
-				{"open_status", q5.ToString(jccommon.GOLD_BULLION_OPEN_STATUS_RECEIVED)},
-			},
-			func (err error, lastInsertId int64, rowsAffected int64) {
-				dbErr = err
-			})
-		if dbErr != nil {
-			return false
-		}
-	}
-	return true
-}
-
-func ReturnGoldBullion(accountId string, netId int32, tokenId string) bool {
-	GetTaskMgr().LockOpenGodBullion()
-	defer GetTaskMgr().UnLockOpenGodBullion()
-
-	if !AccountIdExistsAndIgnoreError(accountId) {
-		return false
-	}
-
-	var itemId int32
-	if !GetNoOpenGoldBullionItemIdByTokenId(tokenId, &itemId) {
-		return false
-	}
-	goldNum := jccommon.GetGoldBullionGoldNum(itemId)
-	if goldNum <= 0 {
-		return false
-	}
-
-	{
-		goldNumStr := q5.ToString(goldNum)
-		if goldNum == 1000 {
-			goldNumStr = "1,000"
-		} else if goldNum == 10000 {
-			goldNumStr = "10,000"
-		}
-		nowTime := f5.GetApp().GetRealSeconds()
-		subject := "gold return"
-		content := fmt.Sprintf("We regret to inform you that the minting of your Gold Card has failed. The %s gold has been refunded to your account. Please check your balance to confirm the refund.", goldNumStr)
-		uniKey := fmt.Sprintf("gold_bullion.return:%d_%s", netId, tokenId)
-		sendOk := SendSysMail(
-			uniKey,
-			accountId,
-			subject,
-			content,
-			q5.ToInt32(nowTime),
-			q5.ToInt32(nowTime) + 3600 * 24 * 14,
-			jccommon.MAIL_TAG1_GOLD_BULLION,
-			jccommon.MAIL_TAG2_GOLD_BULLION_RETURN)
-		if !sendOk {
-			return false
-		}
-	}
-
-	{
-		var dbErr error
-		returned := false
-		f5.GetGoStyleDb().OrmSelectOne(
-			constant.GAME_DB,
-			"t_gold_bullion_return",
-			[][]string {
-				{"net_id", q5.ToString(netId)},
-				{"token_id", tokenId},
-			},
-			func (err error, ds *f5.DataSet) {
-				dbErr = err
-				if err != nil {
-					return
-				}
-				if ds.Next() {
-					returned = true
-				}
-			})
-		if dbErr != nil {
-			return false
-		}
-		if returned {
-			return false
-		}
-	}
-	{
-		var dbErr error
-		nowTime := f5.GetApp().GetRealSeconds()
-		f5.GetGoStyleDb().Upsert(
-			constant.GAME_DB,
-			"t_gold_bullion_return",
-			[][]string {
-				{"token_id", tokenId},
-			},
-			[][]string {},
-			[][]string {
-				{"account_id", accountId},
-				{"token_id", tokenId},
-				{"net_id", q5.ToString(netId)},
-				{"item_id", q5.ToString(itemId)},
-				{"gold", q5.ToString(goldNum)},
-				{"createtime", q5.ToString(nowTime)},
-				{"modifytime", q5.ToString(nowTime)},
-			},
-			func (err error, lastInsertId int64, rowsAffected int64) {
-				dbErr = err
-			})
-		if dbErr != nil {
-			return false
-		}
-	}
-
-	{
-		var dbErr error
-		nowTime := f5.GetApp().GetRealSeconds()
-		f5.GetGoStyleDb().Update(
-			constant.GAME_DB,
-			"t_gold_bullion",
-			[][]string {
-				{"token_id", tokenId},
-				},
-			[][]string {
-				{"return_status", q5.ToString(1)},
-				{"returned", q5.ToString(1)},
-				{"return_time", q5.ToString(nowTime)},
-			},
-			func (err error, lastInsertId int64, rowsAffected int64) {
-				dbErr = err
-			})
-		if dbErr != nil {
-			return false
-		}
-	}
-
-	{
-		if !UserAddGold(accountId, goldNum, netId, tokenId, constant.USER_ADD_GOLD_REASON_RETURN) {
-			return false
-		}
-	}
-
-	{
-		var dbErr error
-		f5.GetGoStyleDb().Update(
-			constant.GAME_DB,
-			"t_gold_bullion",
-			[][]string {
-				{"token_id", tokenId},
-				},
-			[][]string {
-				{"return_status", q5.ToString(2)},
-			},
-			func (err error, lastInsertId int64, rowsAffected int64) {
-				dbErr = err
-			})
-		if dbErr != nil {
-			return false
-		}
-	}
-
-	return true
-}
diff --git a/server/light_backtask/task/nftlock.go b/server/light_backtask/task/nftlock.go
deleted file mode 100644
index 580a29bf..00000000
--- a/server/light_backtask/task/nftlock.go
+++ /dev/null
@@ -1,217 +0,0 @@
-package task
-
-import (
-	"q5"
-	"f5"
-	"fmt"
-	"strings"
-	"mt"
-	"jccommon"
-	"main/constant"
-	"main/service"
-	"math/rand"
-)
-
-type lockReturnValues struct {
-	Nft string `json:"nft"`
-	Sender string `json:"sender"`
-	To string `json:"to"`
-	TokenIds []string `json:"tokenIds"`
-}
-
-type nftLock struct {
-	mailCfgHash *q5.ConcurrentMap[string, *jccommon.MailConfig]
-}
-
-func (this* nftLock) init() {
-	this.mailCfgHash = new(q5.ConcurrentMap[string, *jccommon.MailConfig])
-	this.registerMailConfig(constant.MAIL_GOLD_BULLION_LOCK,
-		jccommon.MAIL_TAG1_GOLD_BULLION,
-		jccommon.MAIL_TAG2_GOLD_BULLION_LOCK)
-	go this.process()
-}
-
-func (this* nftLock) unInit() {
-}
-
-func (this* nftLock) process() {
-	f5.GetGoStyleDb().LoopLoad(
-		constant.BCEVENT_DB,
-		"nftLock",
-		"t_nft_lock_event",
-		func () int64 {
-			return 3
-		},
-		func (lastIdx int64) string {
-			sql := fmt.Sprintf(`
-SELECT * FROM t_nft_lock_event WHERE idx > %d AND (nft_sync_status = 0 OR nft_use_status = 0) LIMIT 100`,
-				lastIdx,
-			)
-			return sql
-		},
-		[]string{
-		},
-		func () int64 {
-			return 3
-		},
-		func () int64 {
-			return 60 + q5.ToInt64(rand.Intn(3))
-		},
-		this.repair)
-}
-
-func (this* nftLock) repair(ds *f5.DataSet) bool {
-	nftSyncStatus := q5.ToInt32(ds.GetByName("nft_sync_status"))
-	nftUseStatus := q5.ToInt32(ds.GetByName("nft_use_status"))
-	netId := q5.ToInt32(ds.GetByName("net_id"))
-	idx := q5.ToInt64(ds.GetByName("idx"))
-	lockTo := ds.GetByName("lock_to")
-	lockSender := ds.GetByName("lock_sender")
-	if nftSyncStatus == 0 && lockTo != "" {
-		p := new(lockReturnValues)
-		if q5.DecodeJson(ds.GetByName("return_values"), p) == nil {
-			for _, val := range p.TokenIds {
-				contractAddress := strings.ToLower(p.Nft)
-				tokenId := val
-				if service.NftExists(netId, contractAddress, tokenId) {
-					service.NftUpdateLock(netId, contractAddress, tokenId, idx, lockTo, lockSender)
-				}
-			}
-		}
-	}
-	if nftUseStatus == 0 {
-		p := new(lockReturnValues)
-		if q5.DecodeJson(ds.GetByName("return_values"), p) == nil {
-			this.useNft(idx, netId, lockTo, p)
-		}
-	}
-	return true
-}
-
-func (this *nftLock) useNft(dbIdx int64, netId int32, lockTo string, p *lockReturnValues) {
-	lockTo = strings.ToLower(lockTo)
-	contractAddress := strings.ToLower(p.Nft)
-
-	goldMeta := mt.Table.Contract.GetByNetIdName(netId, jccommon.CONTRACT_NAME_GoldBrick)
-	if goldMeta == nil {
-		return
-	}
-	if contractAddress != strings.ToLower(goldMeta.GetAddress()) {
-		f5.GetGoStyleDb().Update(
-			constant.BCEVENT_DB,
-			"t_nft_lock_event",
-			[][]string {
-				{"idx", q5.ToString(dbIdx)},
-			},
-			[][]string {
-				{"nft_use_status", q5.ToString(1)},
-			},
-			func (err error, lastInsertId int64, rowsAffected int64) {
-			})
-		return
-	}
-	accountId := service.GetAccountIdByAddress(lockTo)
-	if accountId == "" {
-		return
-	}
-	ok := true
-	for _, tokenId := range p.TokenIds {
-		var itemId int32
-		if service.GetGoldBullionByNetIdTokenId(netId, tokenId, &itemId) {
-			if service.OpenGoldBullion(accountId, lockTo, netId, tokenId) {
-				if this.internalSendMail(dbIdx, lockTo, constant.MAIL_GOLD_BULLION_LOCK, tokenId) {
-
-				} else {
-					ok = false
-					break
-				}
-			} else {
-				ok = false
-				break
-			}
-		} else {
-			ok = false
-			break
-		}
-	}
-	if ok {
-		f5.GetGoStyleDb().Update(
-			constant.BCEVENT_DB,
-			"t_nft_lock_event",
-			[][]string {
-				{"idx", q5.ToString(dbIdx)},
-				},
-			[][]string {
-				{"nft_use_status", q5.ToString(1)},
-				},
-			func (err error, lastInsertId int64, rowsAffected int64) {
-			})
-	}
-}
-
-func (this* nftLock) internalSendMail(dbIdx int64, accountAddress string, mailName string, tokenId string) bool {
-	var itemId int32
-	if !service.GetGoldBullionItemIdByTokenId(tokenId, &itemId) {
-		return true
-	}
-	goldNum := jccommon.GetGoldBullionGoldNum(itemId)
-	goldNumStr := this.formatGoldNum(goldNum)
-	itemMeta := mt.Table.Item.GetById(q5.ToInt64(itemId))
-	if itemMeta == nil {
-		return true
-	}
-	accountId := service.GetAccountIdByAddress(accountAddress)
-	if accountId == "" {
-		return true
-	}
-	mailMeta := mt.Table.Mail.GetByName(mailName)
-	if mailMeta == nil {
-		return true
-	}
-	mailCfg := this.getMailConfig(mailName)
-	if mailCfg == nil {
-		return true
-	}
-	nowTime := f5.GetApp().GetRealSeconds()
-	subject := mailMeta.GetTitle()
-	content := mailMeta.ReplaceContent(map[string]string{
-		"${item.name}": itemMeta.GetRealName(),
-		"${gold}": goldNumStr,
-	})
-	uniKey := fmt.Sprintf("%s_%s_%d", mailName, tokenId, dbIdx)
-	sendOk := service.SendSysMail(
-		uniKey,
-		accountId,
-		subject,
-		content,
-		q5.ToInt32(nowTime),
-		q5.ToInt32(nowTime) + 3600 * 24 * 7,
-		mailCfg.Tag1,
-		mailCfg.Tag2)
-	return sendOk
-}
-
-func (this *nftLock) formatGoldNum(goldNum int32) string {
-	if goldNum == 1000 {
-		return "1,000"
-	} else if goldNum == 10000 {
-		return "10,000"
-	}
-	return q5.ToString(goldNum)
-}
-
-func (this *nftLock) getMailConfig(mailName string) *jccommon.MailConfig {
-	if v, ok := this.mailCfgHash.Load(mailName); ok {
-		return *v
-	} else {
-		return nil
-	}
-}
-
-func (this *nftLock) registerMailConfig(mailName string, tag1 int32, tag2 int32) {
-	p := new(jccommon.MailConfig)
-	p.MailName = mailName
-	p.Tag1 = tag1
-	p.Tag2 = tag2
-	this.mailCfgHash.Store(mailName, p)
-}