How to start Airang service

Hello ,everyone, i install ariang-nginx, when i completed step by step setup , the aria2 service has not started.
when i setup PRC token and the aria2 service is running.


when i login in aning and set the same token ,the status show connect.

when i use start BT download ,the aira2 show error and the service is not running.

how to setup it ,thanks your help.