It's impossible to advise without seeing your flow.
Please also use a debug node set to display the whole msg object to share the data as it enters your flow.
Export your code using the hamburger menu and paste it here using the </>.
Copy the value that your debug node shows, not a screen capture. Again use the </> button to post it here.
There’s a great page in the docs (Working with messages : Node-RED) that will explain how to use the debug panel to find the right path to any data item.
Pay particular attention to the part about the buttons that appear under your mouse pointer when you over hover a debug message property in the sidebar.
In order to make code readable and usable in the forum it is necessary to surround your code with three backticks (also known as a left quote or backquote ```)
```
code goes here
```
You can edit and correct your post by clicking the pencil 
icon.
See this post for more details - How to share code or flow json
