Requesting assistance cos I have been trying to install Quickbuild build agent in our server but the agent.sh is not starting up properly.

I was able to install and run it successfully (including Java) but after rebooting the server, the agent.sh could not start up due to incorrect Server URL on node.properties. I was able to correct it but agent.sh still would not start. However, I tried "./agent.sh console" and it is booting up successfully. Unfortunately, I do not have logs prior to this because I tried to remove all quickbuild content on the folder and reinstall it again but to no avail.

Here is the current output of agent.sh. Our server is running on Debian 5.10.140-1 by the way.