rest_no_route 404

Using this plugin with Postman gives me

`{
“code”: “rest_no_route”,
“message”: “No route was found matching the URL and request method”,
“data”: {
“status”: 404
}
}

Posting to https://URL/blog/wp-json/wp/v2/users/register

{
“username”: “abcde”,
“email”: “[email protected]”,
“password”: “Thu95asa”
}