报告消息成功或失败时，审批消息可能已被其他人审批并删除关联的审批消息,此时认为不需要报告，因此方法不报错

B3WeChat/Rpcs/ApproveMessageRpc.cs

@@ -110,6 +110,10 @@ namespace BWP.B3WeChat.Rpcs
     public static void ExecuteSuccess(string messageID)
     {
       var message = bl.Load(messageID);
+      if (message == null)
+      {
+        return;
+      }
       SendMessageUtil.SendFeedbackNotice(message.OpenID, "你好，你的审批结果ERP系统已收到并处理", "微信审批接收", "消息号" + message.ID, message.CreateTime, true);
       bl.Delete(messageID);
       DelMessagesByBusiness(message);
@@ -118,6 +122,10 @@ namespace BWP.B3WeChat.Rpcs
     [Rpc]
     public static void ExecuteFail(string messageID,string reason){
       var message = bl.Load(messageID);
+      if (message == null)
+      {
+        return;
+      }
       SendMessageUtil.SendFeedbackNotice(message.OpenID, "你好，你的审批结果ERP系统已收到并处理", "微信审批接收", "消息号" + message.ID, message.CreateTime, false, reason);
       bl.Delete(messageID);
       DelMessagesByBusiness(message);