Thanks for posting the logs. Looks like the initial problem was insufficient memory.
It’s generally better to define the host as described in the docs. We find that this helps avoid some problems later when you start to work with the application. You should update this and restart the application
I would also check to see if port 80 and 8080 are open while you are testing.
Wait for a little bit and see how the containers come up.
If you are still getting the 500 error, please share the logs for the UI.