Unable to integrate with JIRA

Hi folks,

I am trying to integrate testrail with JIRA but getting the following error:

Plugin "Jira_REST" returned an error: Invalid HTTP code (401). Please check your user/password and that the REST API is enabled in Jira.

1. I am not set up as an admin in JIRA if that could be an issue
2. Do I need to request any special permission in JIRA?
3. I have different logins for test rail (qa@<companyname.com>) and JIRA (my business email)

Would really appreciate your help here

Note: I did look up info on this error and checked if the remote API calls is enabled in JIRA (asked admin to verify this since I am not an admin user)