While using Emby Theater App, I tried to playback 1 minute. This worked fine but, I was trying to see if there's any DVD Menu support. I tried right clicking a few times to see if a new menu appeared, and reviewed the existing buttons on the bottom of the screen.
After seeing that there weren't, I exited the app using the "X" on the top right corner. I was immediately brought to a Javacript error.
Please find the logs and screenshot attached. Yes, I know I need to upgrade Emby Server, and I'm doing so now.
Also, what's "Error301"? Earlier, I had an issue uploading the files which are all just a few KB. I was thinking perhaps the site was down momentarily? A refresh to the site resolved the issue.