Rest API Authorization

Hi,

can someone help me with postman,

please.

using get  http://{server}/rest-api/service/api/v2/projects/{ProjectId}/testruns/{Id}

but

403 Forbidden

<title>Access denied | jiraproducao.XXXX.com.br used Cloudflare to restrict access</title>

password for generating in https://id.atlassian.com/manage-profile/security/api-tokens 
and inserted in authentication 

username XXXXXX