I was streaming a wedding ceremony on a 2015 13 inch MacBook running Mojave. Everything was going extremely smoothly without any dropped frames or error messages. Partway through the stream the computer itself froze, the screen was frozen and the last 1 second of audio played over and over again on a loop. I was able to turn the computer off manually, restart, and get the stream running again, but I'd love to know what happened so I can prevent this in the future. I've posted the log below.