/* Magic Mirror Config Sample
 *
 * 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: 24,
	units: "metric",

	modules: [
		{
                        module: "MMM-Remote-Control-Repository",
                
                },
                {
                        module: "alert",
                
                },
                {
                        module: "MMM-Remote-Control",
                        position: "center",
                
                },
                {
                        module: "clock",
                        position: "top_left"
                
                },
                {
                       module: "mmm-hue-lights",
                       position: "bottom_right",
                       config: {
                       bridgeIp: "192.168.1.23",
                       user: "",
                       updateInterval: "1000",
                       hideOff: "false",
                       displayMode: "groups",
                       displayType: "list",
                       minimalList: "true",
                       coloredList: "true",
                       hideFilter: ["home-away"],
                       alignment: "right"
               				 }
               },
               {
                      module: "compliments",
                      position: "lower_third",
               },
               {
                      module: "MMM-NOAA3",
                      position: "top_right",
                      config: {
                      provider: "darksky",
                      apiKey: "",
                      airKey: "", 
                      css: "NOAA3",
                      updateInterval: 15,
                      userlat: "51.806460",
                      userlon: "-0.778230"
              				}
              },  
              {
                     module: "calendar",
                     header: "Calendar",
                     position: "top_left",
                     config: {
                     timeFormat:"absolute",
                     titleReplace: {"United Kingdom:" : ""},
                     urgency: 0,
                     getRelative: 6,
                     fullDayEventDateFormat: "D MMMM",
                     dateFormat: "D MMMM - H:mm:ss",
                     fetchInterval: 4000000,
                     colored: true,
                     coloredSymbolOnly: true,
                     maximumEntries: 9,
                     showEnd: false,
                     Calendars: [
             {
                     symbol: "calendar-check-o ",
                     url: "https://www.officeholidays.com/ics/ics_country_code.php?iso=GB",
             
             }
                       ]
             }
             },
             {
                    module: "mmm-nest-status",
                    position: "bottom_left", // pick whichever position you want
                    config: {
                    token: "",
                    displayMode: "all",
                    displayType: "list",
                    thermostatsToShow: "all",
                    units: "metric",
                    updateInterval: "50000",
                    thermostatSize: "small",
                    alignment: "left",
             // ... and whatever else configuration options you want to use
            				}
            },
            {
                    module: "MMM-SystemStats",
                    position: "Top_Center", 
                    updateInterval: 5000,
                    align: "right",
                    units: "metric",
                    label: "text"
            
            },
            {
                    module: "newsfeed",
                    position: "bottom_bar",
                    config: {
                    feeds: [
            				{
                    title: "BBC NEWS UK",
                    url: "http://feeds.bbci.co.uk/news/uk/rss.xml"
             				}
             ],
             },
                   showSourceTitle: true,
                   showPublishDate: true
            }
        
    ]
};
/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") {module.exports = config;}

For the future u can put in your code here: https://jshint.com

Just to analyze what maybe went wrong

I would just suggest that you rename that config.js file to config.js.bak and start over from scratch.