Rtir rest 2.0 tickets

I am trying to use REST/2.0 to get the total number of tickets created from my RTIR server.

i.e myapp[.]com/rest/2.0/queues/all returns a json response, but when I try to use this: myapp[.]com/rest/2.0/tickets, the response is {“message”: “Not Found”}. I have all the necessary permissions, but I’m not sure how to approach this anymore.