Completely flummoxed with inability to access backend

[Lysanias357]

I am a complete noob and have been relying on Brave ai to help me with troubleshooting, but I am completely out of my depth and have spent about 20-30 hours trying to get this app running. I can get it up and running but if Brave is right, the backend can't talk to the front end and I have done updated all kinds of crazy things and still nothing works. Brave actually gave up and said that it is a general compatability issue and said it isn't fixable.

I am trying to run it on TrueNAS community edition as a container using a yml file. I have a seperate containiner for my mariadb since that is used by other containers as well.

I have seen this is a known hang up for people but everyone else seems to use a db section directly in the yml and I can't do that as I already have the db up in the other container.

I don't know what else to do. Any help would be appreciated.