续费按钮调整

Services/Hncore.Pass.Vpn/Service/ProductOrderService.cs

@@ -320,7 +320,7 @@ FROM product_order where {where}  GROUP BY Channel,ProductName order by Channel,
                     order.AccountPayAmount = order.PaymentAmount;
                 else
                 {
-                    order.AccountPayAmount = 0;
+                    return new ApiResult<ProductOrderEntity>(ResultCode.C_UNKNOWN_ERROR, "余额不足");
                 }
             }
             order.OtherPayAmount = order.PaymentAmount - order.AccountPayAmount;