Learn Press API not working

Can you please help in below api call document where one of the GET api is not working

https://docs.thimpress.com/learnpress/developer-guide/rest-api/#5-list-all-lessons-on-the-website

We are getting token from below api 

/wp-json/learnpress/v1/token


{

"token": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJodHRwczpcL1wvYWNhZGVteS5ydXNoaWtzaGFoLmNvbSIsImlhdCI6MTcwOTI4OTk2MSwibmJmIjoxNzA5Mjg5OTYxLCJleHAiOjE3MDk4OTQ3NjEsImRhdGEiOnsidXNlciI6eyJpZCI6IjIxNSJ9fX0.8K_WUJ6k7j96Cuca2CVEAEEH8XLUpn22gwMBqHnZv9g",

"user_id": "215",

"user_login": "priyank",

"user_email": "[email protected]",

"user_display_name": "priyank s"

}

When we try to get lesson api at that time showing below error in the api response. 

<u>/wp-json/learnpress/v1/lessons</u>

getting below response

{

"code": "lp_jwt_auth_no_auth_header",

"message": "Authorization header not found.",

"data": {

"status": 401

    }

}

Can anybody help us to resolve this issue? 

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