fix/ignore undefined channels

package.json

@@ -1,6 +1,6 @@
 {
   "name": "dayzr-bot",
-  "version": "10.4.2",
+  "version": "10.4.3",
   "description": "A General Purpose Discord Bot for DayZ Nitrado Servers.",
   "main": "index.js",
   "nodemonConfig": {

structures/DayzRBot.js

@@ -161,6 +161,7 @@ class DayzRBot extends Client {
     // Handle alarm pings
     for (const [channel_id, data] of Object.entries(this.alarmPingQueue)) {
       const channel = this.GetChannel(channel_id);
+      if (!channel) continue;
       for (const [role, embeds] of Object.entries(data)) {
         if (role == '-no-role-ping-') channel.send({ embeds: embeds });
         else channel.send({ content: `<@&${role}>`, embeds: embeds });