1 - the link you provided is not your node-red flow it is an html page
2 - most people will not down load a file.
To provide your flow, open NR and go to the hamburger menu. Select Export, click on all flows, click the "Copy to clipboard` and add it too a reply.
In order to make code readable and usable 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
