If the agent crashes with no useful errors in the logs, you can run it in foreground mode where it will not become a daemon and will stay attached to your terminal.
This article is for our v1 agent and will soon be deprecated. See running the v2 agent in foreground mode.
Any crash output will be shown in the console which you can send us to help debug the problem.
Running in foreground mode
Run these 2 commands:
cd /usr/bin/sd-agent python agent.py foreground