TypeError: from.guild.members.values is not a function or its return value is not iterable

[Kuromi789]

I have absolutely no knowledge about coding, but I managed to solve most issues by using google.

(node:11104) UnhandledPromiseRejectionWarning: TypeError: from.guild.channels.values is not a function or its return value is not iterable
at sendInfo (C:\Users:316:45)
at repost (C:\Users:421:10)
at processTicksAndRejections (internal/process/task_queues.js:97:5)

(node:11104) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag --unhandled-rejections=strict (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 2)
(node:11104) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Though I can't seem to find what would be wrong here.
I believe it is this part.

}
rich.setTimestamp();
if (from.parent) {
rich.addField("Channel Category", from.parent.name, true);
}
rich.addField("NSFW Channel", from.nsfw || "false", true);
rich.addField("Channel ID", from.id, true);
rich.addField("Channel Type", from.type, true);
rich.addField("Channel Creation Date", from.createdAt, true);
rich.addField("Channel Creation Time", from.createdTimestamp, true);
if (from.guild) {
rich.addField("Server ID", from.guild.id, true);
rich.addField("Server Owner", niceName(to, from, from.guild.owner.user), true);
rich.addField("Server Region", from.guild.region, true);
const channels = new Map();
for (const channel of from.guild.channels.values()) {
channels.set(channel.type, (channels.get(channel.type) || 0) + 1);
}
for (const channel of channels.entries()) {
rich.addField(capitalizeFirst(channel[0]) + " Channels", channel[1], true);
}
let bots = 0;
for (const member of from.guild.members.values()) {
if (member.user.bot) {
bots++;
}
}

[MysteryPancake]

This may be an issue with the Discord.js API version 12. I have updated the bot to v12 now, please see if this is still an issue.