rest_cannot_create error message

Hello there.
I created a jwt token using the menu of the plugin and then I copied the token to the clipboard.
The problem is that when I try to create a post using Postman with the key : Authorization and value Bearer ‘token value here’ and using the (POST endpoint-wp.localhost/wp-json/wp/v2/posts) I get the following response :

{
    "code": "rest_cannot_create",
    "message": "Sorry, you are not allowed to create posts as this user.",
    "data": {
        "status": 401
    }
} 

Any ideas?
Thank you!