oauth token error "error_description": "access_denied", "error": "server_error"

[Vamshi_ch123]

Hi All,

I'm trying to share oauth token to third party users and when i try to generate using postman I'm getting below error 

{

    "error_description": "access_denied",

    "error": "server_error"

}

is it because i don't added headers & no Auth,

Can anyone help addressing this issue

Thank you

[Vamshi_ch123]

Hi Ankur, the user is active and removed headers but still getting error , may i know if we need to provide any role to user?

Thanks & Regards