I have an issue with my MM.

Firstly, please forgive my ignorance, I’m quite new to this.

I have it installed on a Pi4 with 1Gb memory.

The modules I have are the default weather, calendar, news feed. Also I have MMM-Snow, MMM-Ring, MMM-Dad-Jokes and MMM-RTSPStream, and I think it’s the latter that causes a problem.

I have it set up with two ip camera feeds which swap every 10 seconds, and that usually works ok.

But every few hours, the screen goes blank, apart from one of the camera feeds, which then doesn’t change to the second.

I’ve noticed that on start up (from npm start) I get the following error message -

Whoops! There was an uncaught exception...
TypeError: Cannot convert undefined or null to object
    at Function.keys (<anonymous>)
    at stopProcs (/home/pi/MagicMirror/modules/MMM-RTSPStream/node_helper.js:469:32)
    at pm2.list (/home/pi/MagicMirror/modules/MMM-RTSPStream/node_helper.js:498:17)
    at /home/pi/MagicMirror/modules/MMM-RTSPStream/node_modules/pm2/lib/API.js:606:19
    at /home/pi/MagicMirror/modules/MMM-RTSPStream/node_modules/pm2-axon-rpc/lib/client.js:45:10
    at Parser.<anonymous> (/home/pi/MagicMirror/modules/MMM-RTSPStream/node_modules/pm2-axon/lib/sockets/req.js:67:8)
    at Parser.emit (events.js:182:13)
    at Parser._write (/home/pi/MagicMirror/modules/MMM-RTSPStream/node_modules/amp/lib/stream.js:91:16)
    at doWrite (_stream_writable.js:410:12)
    at writeOrBuffer (_stream_writable.js:394:5)
MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues

Could anyone help with suggestions? The next thing I was going to try was to disable the module to see if the blank screen error still occurs but I thought I would ask here first.

Thank you.