Error while reading a comic, now library is empty

I'm running YAC Reader and Library on MacOS Monterey (12.7.4) and YAC Remote on a Fire HD 10 Plus. I was able to set up a server and connect to it no problem and my entire library loaded up. I picked a comic and started reading.

After about 10 minutes, I got a message that there was an error retrieving the comic and the library screen now just has my library name and nothing else—no comics appear. I tried to connect to the server again, but still just kept getting the library name and a white screen. Tried to set up different servers on different ports, all of them connect but still just show the library name with a white screen.

I have a big library so I thought that was the problem. But it's been on the white screen for about 10+ minutes with no comics loaded. When I first was able to connect, the comics started appearing in about a minute.

Any thoughts on what I'm doing wrong?

can you share some screenshots?

I've obscured the full IP address save for the last three digits for security. But here are the settings on the desktop app:

Here are the server settings on my tablet:

And then here is what the library shows. Just a white screen, no error messages appear:

Tap in "Comics", that's a list of libraries, you need to select one to start browsing

Wow, I feel like an idiot. Thanks!