401 Basic Authorization

I´ve been trying to post using postman. I have Wp Api v2 and Basic Auth. I always get 401:

{
“code”: “rest_cannot_create”,
“message”: “Sorry, you are not allowed to create new posts.”,
“data”: {
“status”: 401
}
}

I´m using my admin user for wordpress and it is well written.

Please someone help.

https://ww.wp.xz.cn/plugins/json-rest-api/