diff --git a/modules/smithy/api_trade.go b/modules/smithy/api_trade.go
index a86b1eafc..cf6a510ad 100644
--- a/modules/smithy/api_trade.go
+++ b/modules/smithy/api_trade.go
@@ -1,7 +1,6 @@
 package smithy
 
 import (
-	"errors"
 	"go_dreamfactory/comm"
 	"go_dreamfactory/pb"
 )
@@ -28,13 +27,13 @@ func (this *apiComp) Sell(session comm.IUserSession, req *pb.SmithySellReq) (err
 	this.module.ModuleEquipment.RecycleEquipments(session, req.EquipIds, this.module.modelStove.StoveToolsSellUp(session.GetUserId()))
 
 	cus, err := this.module.modelTrade.updateCustomer(session.GetUserId(), req.CustomerId)
-	var customErr = new(comm.CustomError)
-	if errors.As(err, &customErr) {
-		code := customErr.Code
+	if err != nil {
 		errdata = &pb.ErrorData{
-			Code:  code,
-			Title: code.ToString(),
+			Code:    pb.ErrorCode_ReqParameterError,
+			Title:   pb.ErrorCode_ReqParameterError.ToString(),
+			Message: err.Error(),
 		}
+		return
 	}
 
 	conf, err := this.module.configure.GetSmithyCustomerConf(req.CustomerId)