@MichMich I changed the port in the config.js and it works perfectly fine now, thanks for the help and for this wonderful project :)

@sdetweil I did a manual install doing git clone and then npm install on raspbian and no, I haven’t used pm2 to run my instance, is that what I am doing wrong?
Also, what about the error I get when running the config check?

I recently installed the magic mirror repo following the instructions from the docs. I did everything and it all worked fine, until the time came to run it. I did npm run start and it showed this,

> magicmirror@2.12.0 start /home/pi/MagicMirror
> DISPLAY="${DISPLAY:=:0}" ./node_modules/.bin/electron js/electron.js

[2020-07-05 11:02:41.744] [LOG]    Starting MagicMirror: v2.12.0
[2020-07-05 11:02:41.812] [LOG]    Loading config ...
[2020-07-05 11:02:41.859] [LOG]    Loading module helpers ...
[2020-07-05 11:02:41.871] [LOG]    No helper found for module: alert.
[2020-07-05 11:02:42.124] [LOG]    Initializing new module helper ...
[2020-07-05 11:02:42.127] [LOG]    Module helper loaded: updatenotification
[2020-07-05 11:02:42.131] [LOG]    No helper found for module: clock.
[2020-07-05 11:02:44.063] [LOG]    Initializing new module helper ...
[2020-07-05 11:02:44.065] [LOG]    Module helper loaded: calendar
[2020-07-05 11:02:44.069] [LOG]    No helper found for module: compliments.
[2020-07-05 11:02:44.072] [LOG]    No helper found for module: currentweather.
[2020-07-05 11:02:44.075] [LOG]    No helper found for module: weatherforecast.
[2020-07-05 11:02:44.203] [LOG]    Initializing new module helper ...
[2020-07-05 11:02:44.205] [LOG]    Module helper loaded: newsfeed
[2020-07-05 11:02:44.207] [LOG]    All module helpers loaded.
[2020-07-05 11:02:44.772] [LOG]    Starting server on port 8080 ... 
[2020-07-05 11:02:44.848] [LOG]    Server started ...
[2020-07-05 11:02:44.852] [LOG]    Connecting socket for: updatenotification
[2020-07-05 11:02:44.856] [LOG]    Connecting socket for: calendar
[2020-07-05 11:02:44.858] [LOG]    Starting node helper for: calendar
[2020-07-05 11:02:44.860] [LOG]    Connecting socket for: newsfeed
[2020-07-05 11:02:44.862] [LOG]    Starting node helper for: newsfeed
[2020-07-05 11:02:44.865] [LOG]    Sockets connected & modules started ...
Fontconfig warning: "/etc/fonts/fonts.conf", line 100: unknown element "blank"
[2020-07-05 11:02:45.782] [ERROR]  Whoops! There was an uncaught exception...
[2020-07-05 11:02:45.785] [ERROR]  Error: listen EADDRINUSE: address already in use 127.0.0.1:8080
    at Server.setupListenHandle [as _listen2] (net.js:1226:14)
    at listenInCluster (net.js:1274:12)
    at GetAddrInfoReqWrap.doListen [as callback] (net.js:1413:7)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:65:10) {
  code: 'EADDRINUSE',
  errno: 'EADDRINUSE',
  syscall: 'listen',
  address: '127.0.0.1',
  port: 8080
}
[2020-07-05 11:02:45.815] [ERROR]  MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
[2020-07-05 11:02:45.830] [ERROR]  If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
[2020-07-05 11:02:45.890] [LOG]    Launching application.
[2020-07-05 11:03:24.978] [LOG]    Shutting down server...
[2020-07-05 11:03:24.990] [LOG]    Stopping module helper: updatenotification
[2020-07-05 11:03:24.993] [LOG]    Stopping module helper: calendar
[2020-07-05 11:03:24.995] [LOG]    Stopping module helper: newsfeed

I then decided to run the config check and see if I did something wrong and was hit with this error:

> magicmirror@2.12.0 config:check /home/pi/MagicMirror
> node js/check_config.js

[2020-07-05 11:10:58.675] [INFO]   Checking file...  /home/pi/MagicMirror/config/config.js
[2020-07-05 11:10:59.193] [LOG]    Line 1 col 1 Definition for rule 'prettier/prettier' was not found.
/home/pi/MagicMirror/js/check_config.js:66
			throw new Error("Wrong syntax in config file!");

Here’s my config.js:

/* Magic Mirror Config Sample
 *
 * By Michael Teeuw https://michaelteeuw.nl
 * MIT Licensed.
 *
 * For more information on how you can configure this file
 * See https://github.com/MichMich/MagicMirror#configuration
 *
 */

var config = {
	address: "localhost", 	// Address to listen on, can be:
							// - "localhost", "127.0.0.1", "::1" to listen on loopback interface
							// - another specific IPv4/6 to listen on a specific interface
							// - "0.0.0.0", "::" to listen on any interface
							// Default, when address config is left out or empty, is "localhost"
	port: 8080,
	basePath: "/", 	// The URL path where MagicMirror is hosted. If you are using a Reverse proxy
					// you must set the sub path here. basePath must end with a /
	ipWhitelist: ["127.0.0.1", "::ffff:127.0.0.1", "::1"], 	// Set [] to allow all IP addresses
															// or add a specific IPv4 of 192.168.1.5 :
															// ["127.0.0.1", "::ffff:127.0.0.1", "::1", "::ffff:192.168.1.5"],
															// or IPv4 range of 192.168.3.0 --> 192.168.3.15 use CIDR format :
															// ["127.0.0.1", "::ffff:127.0.0.1", "::1", "::ffff:192.168.3.0/28"],

	useHttps: false, 		// Support HTTPS or not, default "false" will use HTTP
	httpsPrivateKey: "", 	// HTTPS private key path, only require when useHttps is true
	httpsCertificate: "", 	// HTTPS Certificate path, only require when useHttps is true

	language: "en",
	logLevel: ["INFO", "LOG", "WARN", "ERROR"],
	timeFormat: 24,
	units: "metric",
	// serverOnly:  true/false/"local" ,
	// local for armv6l processors, default
	//   starts serveronly and then starts chrome browser
	// false, default for all NON-armv6l devices
	// true, force serveronly mode, because you want to.. no UI on this device

	modules: [
		{
			module: "alert",
		},
		{
			module: "updatenotification",
			position: "top_bar"
		},
		{
			module: "clock",
			position: "top_left"
		},
		{
			module: "calendar",
			header: "US Holidays",
			position: "top_left",
			config: {
				calendars: [
					{
						symbol: "calendar-check",
						url: "webcal://www.calendarlabs.com/ical-calendar/ics/76/US_Holidays.ics"					}
				]
			}
		},
		{
			module: "compliments",
			position: "lower_third"
		},
		{
			module: "currentweather",
			position: "top_right",
			config: {
				location: "Bangalore",
				locationID: "1277333", //ID from http://bulk.openweathermap.org/sample/city.list.json.gz; unzip the gz file and find your city
				appid: "4b32b21aaee5dd9ae4585256eed97703"
			}
		},
		{
			module: "weatherforecast",
			position: "top_right",
			header: "Weather Forecast",
			config: {
				location: "Bangalore",
				locationID: "1277333", //ID from http://bulk.openweathermap.org/sample/city.list.json.gz; unzip the gz file and find your city
				appid: "4b32b21aaee5dd9ae4585256eed97703"
			}
		},
		{
			module: "newsfeed",
			position: "bottom_bar",
			config: {
				feeds: [
					{
						title: "New York Times",
						url: "https://rss.nytimes.com/services/xml/rss/nyt/HomePage.xml"
					}
				],
				showSourceTitle: true,
				showPublishDate: true,
				broadcastNewsFeeds: true,
				broadcastNewsUpdates: true
			}
		},
	]
};

/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") {module.exports = config;}

I’m a complete newbie in this department and would appreciate any help you guys can offer :)