Text is required error

[Andrew Carlson]

I was trying to post to a group chat using the following code

It kept throwing the response code 400 so I plugged every thing into Postman and am getting this.

text is one of my parameters and I can prove it.

This is one of my first "big projects" and this is also my first time messing with APIs so I'm kinda stuck and confused. Plz help :)