An Unresolved Error

Hi, I work on centos and got this error when Kapacitor list tasks.
Get http://localhost:9092/kapacitor/v1/tasks?dot-view=attributes&fields=type&fields=status&fields=executing&fields=dbrps&limit=100&offset=0&pattern=&replay-id=&script-format=formatted: dial tcp [::1]:9092: connect: connection refused

I noticed that there is an answer to execute “kapacitord” and I tried it, but only got
run: open server: open service *udf.Service: failed to load process info for “tTest”: write error: write |1: broken pipe

Could you pls tell me what I did wrong so that got this problem. Thx