so maybe your chromium installation is broken.

Did u use the automatic installer or not?

Maybe you should delete the MagicMirror folder in your home dictionary and try this if u use a raspberry pi:

bash -c "$(curl -sL https://raw.githubusercontent.com/MichMich/MagicMirror/master/installers/raspberry.sh)"

And u should read this carefully:
https://github.com/MichMich/MagicMirror

Aaaaaand u should edit your post as MadScientist said ;)

The second thing was to fix the format to make it more readable.

I have no idea where ‘…/deps/v8/src/snapshot/deserializer.cc’ is. Isn’t it giving the full path? Maybe try to deactivate the MMM-NowPlayingOnSpotify module and see if the mirror is starting.

Check failed: false.

that is what I get when I try to start it…

Can you fix the format? It’s barely readable like this.

• By Michael Teeuw http://michaelteeuw.nl
• MIT Licensed.
• For more information how you can configurate 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, is “localhost”
port: 8080,
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”],

language: "en",
timeFormat: 12,
units: "imperial",

modules: [
	{
		module: "alert",
	},
	{
		module: "updatenotification",
		position: "top_bar"
	},
	{
		module: "clock",
		position: "top_left"
	},
		{
		  module: "MMM-NowPlayingOnSpotify",
		  position: "bottom_left",
		
		  config: {
		    clientID: "9cbb4966327e429ea6611b896c7aa475",
		    clientSecret: "5fb34270e7974d4db88b72184ffea965",
		    accessToken: "BQAV5hhJmzGt_yFq9JgfqQmOaYBeWBQsZJZYgnwr8rRXehDtB9huPdLZMBlY7H6SLWJFiSBlVVwh_Pbx_Ax2ehtYbyHjur1OTSuvt1BA_SVMC_Zmtk6fBMQd3TdrzNnz9n9zUXCaS0YA5llPKauKWz9_N_g",
		    refreshToken: "AQC9r0Dr3B6v5oDnIGcxCfsXVT73Z9fWkj83NGk3CBritcOj7ReotWoOjQomMQhO3M8vjsnvDtkBYCNzj__-MCQILSY_uxyeBzN4XtqKQhulIo0TfrnfSPk6KHSOQlKrvB8"
		  }
		},



	{
		module: "calendar",
		header: "Ben's Events",
		position: "top_left",
		config: {
			calendars: [
				{
					symbol: "calendar-check-o ",
					url: "https://calendar.google.com/calendar/ical/brperlson%40gmail.com/private-4e5979ce33a6de99058ea95ee43eb965/basic.ics"
				}
			]
		}
	},

	{
		module: "currentweather",
		position: "top_right",
		config: {
			location: "Iowa City",
			locationID: "4862034",  //ID from http://www.openweathermap.org/help/city_list.txt
			appid: "ab97a6b07b76d512b14cff642fa674e6"
		}
	},
	{
		module: "weatherforecast",
		position: "top_right",
		header: "Weather Forecast",
		config: {
			location: "Iowa City",
			locationID: "4862034",  //ID from http://www.openweathermap.org/help/city_list.txt
			appid: "ab97a6b07b76d512b14cff642fa674e6"
		}
	},
	//{
	//	module: "newsfeed",
	//	position: "bottom_bar",
	//	config: {
	//		feeds: [
	//			{
	//				title: "New York Times",
	//				url: "http://www.nytimes.com/services/xml/rss/nyt/HomePage.xml"
	//			}
	//		],
	//		showSourceTitle: true,
	//		showPublishDate: true
	//	}
	//},
]

};

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