AstroBerry.io has an image already to build. This includes ind-web. This is the appeal of AstroBerry Server 2.0.2.

The other method, via INDI, builds for Ubuntu Mate. I keep my RPI3B+ Ubuntu Mate. It doesn’t have InDI-web.

I would look at the .service files for the components of InDI-web. Check to see if services are not lining up. The systemctl output looks like the service is running.

AstroPI3 includes some tools to get indiwebmanager pieces monitored. I would not recommend it for AstroBerry Server 2.0.2. ABS 2..0.2 is optimized to be a remote device.

Here is how I get to the device. I just use the IP. Don’t add the port.