non-agent api not working error: agent_user is not logged in

Hi
I am trying to call below api earlier it was working fine but now i am getting error: agent_user is not logged in, but i can see the agents logged in realtime report
What can be the issue, it seems the server has been compromised or someone has change some settings
can any body help, below is the non-agent api which i am calling and getting error: agent_user is not logged in
http://server_ip/agc/api.php?function=e ... &focus=YES
I am trying to call below api earlier it was working fine but now i am getting error: agent_user is not logged in, but i can see the agents logged in realtime report
What can be the issue, it seems the server has been compromised or someone has change some settings
can any body help, below is the non-agent api which i am calling and getting error: agent_user is not logged in
http://server_ip/agc/api.php?function=e ... &focus=YES