@plainbroke - Huh. Those appear to be graphics driver problems. They’re a known issue between the Raspian OS and the Electron framework. They shouldn’t be related to your issue with the module.
Okay, let’s dig up the other log files. Easiest thing to do is to make sure your mirror is running and then use the web browser to view the mirror interface. First, edit the config.js to allow other computers to access the interface. Change the address and ipWhiteList to allow other computers to see your mirror:
var config = {
address: "0.0.0.0",
port: 8080,
ipWhitelist: [],
...
Save and restart your mirror instance with pm2 restart 0.
Now you should point your web browser at the IP address of your mirror. Remember to add the port to the url you enter in the address bar. For example: http://192.168.0.15:8080 should get you your interface if your IP address is 192.168.0.15.
Anyhow, you should see the mirror interface in your web browser. Now you need to pull up the developer tools, usually by hitting F12 on your keyboard (I know it works in Chrome and Firefox). A section of your browser will open up with the developer tools. There will be a tab labeled console. These are the other logs I mentioned earlier.
Click on the console tab and look for anything that mentions the MMM-SingleStock module. Let us know what it says, especially if it mentions an error.