wixData.insert() creates a new field in the database

Hello,
I am trying to do a simple insert on with wixData, but when I am running the function instead of using the existing database fields, new fields are created wrapped in brackets

My code:

$w.onReady(function () {
//TODO: write your page related code here...
let newCoin = {
Price: "12345"
}
wixData.insert("Crypto", newCoin)

How it looks after going into the page:

Hover over your existing Price column and click Manage Field. In code you need to use the key it gives there, which isn’t necessarily exactly the same as the label shown on the table header.

Thank you sir