Fixed bug with server-side sync function

src/app/channel/media/queue.js

@@ -713,6 +713,12 @@ module.exports = class{
         //Send sync signal out to the channel
         this.server.io.in(this.channel.name).emit("sync", {timestamp: this.timestamp});
 
+        //If the media has been cleared out
+        if(this.nowPlaying == null){
+            //Fuck off and don't bother
+            return;
+        }
+
         //If the media has over a second to go
         if((this.timestamp + 1) < this.nowPlaying.duration){
             //Increment the time stamp