Plexamp player sometimes popup the following error message:
A JavaScript error occurred in the main process
Uncaught Exception:
TypeError: Object has been destroyed
at MediaService.<anonymous> (/Applications/Plexamp.app/Contents/Resources/app.asar/main.js:2:15806)
at MediaService.emit (node:events:517:28)
at /Applications/Plexamp.app/Contents/Resources/app.asar/node_modules/electron-media-service/src/darwin/index.js:24:14
I believe this behavior occurs when the Plexamp application is still in memory and the computer resumes from hibernate/sleep mode. Maybe this is also related to the player previously being connected to a remote Plex player.