Unable to record, no errors?

Hi all, I’ve tried following one of the tutorials here on this forum to install Jitsi and run the Jibri recording app, but recording does not work and there’s no error output for me to debug this problem. I’ve been going at it for the last 3 days and not much progress, unfortunately. If it helps, we’re running Ubuntu 18 LTS on Google Cloud Platform. Logs are attached below.

Jibri log: https://pastebin.com/7dQBa4NQ
Prosody Log: https://pastebin.com/vxHDzBC1
Jicofo Log: pastebin .com/ARSN45Td
JVB log: pastebin .com/rUuTG6SS

(Please excuse the link format, I am unable to post > 2 links as a new user)