Minecraft server as systemd service, server keeps closing, no logs being generated

I'm following this guide on how to setup a Minecraft server to run as a systemd service. I finally (sorta) think I know what I'm doing now, since I'm new to systemd scripting. My problem is when "systemctl start minecraft@bukkit" is run, it will begin consuming resources, seen in htop, and then after a few seconds all the server stuff just closes. I went to go check the bukkit folder for logs, there are no logs to be found, nothing in ./logs/, nothing in ./crash-reports/.

This is my modified script based on the one in the tutorial: https://pastebin.com/wB1MLrQr