Why is the Discord bot message not changing?

Question

Node.js

Good day, I've been struggling with the code for 2 days, and I decided to turn here for help.
Let's talk a little about the bot, it already has 100% working /bug and /edit commands, the first one creates a message and sends it to a channel where others are denied access, but if someone made mistakes, do you need to fix it somehow? There is a /edit command for this, you understand the essence. I want to say that for the /edit command to work, I save the data to a local file.

I started working on the /repeatto command, its essence is to send a copy of the message to another channel. This is where the interesting moment begins, here is the code for the /repeatto command for a rough understanding of what I'm doing:

if(message.content.startsWith("/repeatto")) { 
        deleteLastM();
        if (!message.mentions.channels.first()) return message.author.send("Укажите один канал");
        if (message.mentions.channels.size == 1){
            if (!message.member.hasPermission("MANAGE_MESSAGES")) return message.author.send("У вас недостаточно прав"), deleteLastM();
            const textrepeat = TRepeat();
            const repeatname = TRepeatName();
            var ID = GetNewID();
            const Mchannel = message.mentions.channels.first().id;
            
            var embed = new Discord.MessageEmbed()
           .setColor('#000000')
           .setFooter(`#${ID}`)
           .setTitle(`${repeatname}`)
           .addField("\u200B", `${textrepeat}`)
            
           client.channels.cache.get(Mchannel)
            .send(embed).then( repeat =>
            db.set(`${ID}`, {realid: `${repeat.id}`, type: "repeated", channelid:`${Mchannel}`, rname:`${repeatname}`, rtext: `${textrepeat}`})
            );
        }
    }

This is how my code looks, quite simply, but still I will explain: In the command, the first thing is to check for the mentioned channels, if there are none, an error is generated, if there is a mentioned channel, I get its ID and save it along with the message, after which it is sent.

Finally, it was the turn of the mistake itself. Of course, I made it so that the text could be changed, here somewhere my mistake lies:

if(server = '686225794766209088' && message.content.startsWith("/edit")) {
        deleteLastM(); 
        var tokens = message.content.split(" ");
        const MTid = tokens[1];
        if (MTid == null || MTid == undefined) return message.author.send("Будте добры указать ID сообщения, которого вы пытаетесь изменить.");
        else if (db.has(MTid)) {
            const Msg = db.get(MTid);

            const RID = parseInt(MTid, 10);

            async function EditMessage() {
                
            let someserver = client.guilds.cache.get('686225794766209088');
            let somechannel = someserver.channels.cache.get(Msg.channelid);
            let somemessage = await somechannel.messages.fetch(Msg.realid);

           if (Msg.type == "repeated"){

            const ETrepeatname = Msg.rname
            const ETrepeat = Msg.rtext

            Erepeatname = function() {
                if (message.content.includes("-n")) return TRepeatName()
                else return ETrepeatname 
            }
            Erepeattext = function() {
                if (message.content.includes("-r")) return TRepeat() 
                else return ETrepeat
            }

            const dbErepeatname = Erepeatname();
            const dbErepeat = Erepeattext();

            var repeatedembed = new Discord.MessageEmbed()
           .setColor('#000000')
           .setFooter(`#${RID}`)
           .setTitle(`${dbErepeatname}`)
           .addField("\u200B", `${dbErepeat}`)
           db.set(`${RID}`, {realid: `${Msg.realid}`, type: "repeated", channelid:`${Msg.chennelid}`, rname: `${dbErepeatname}`, rtext: `${dbErepeat}`});
           somemessage.edit(repeatedembed);
           message.channel.send("Изменения успешны!").then(msg => {
            msg.delete({timeout: 10000})
            });
           }
            }
            EditMessage();
        }        
    }

Let's talk a little about what's wrong. When I write the /repeatto command for the first time, everything happens as it should, if I want to change something, I write the /edit command, everything also goes smoothly, but as soon as I repeat the /edit command, there are two options for events:

An error appears here:

let someserver = client.guilds.cache.get('686225794766209088');
let somechannel = someserver.channels.cache.get(Msg.channelid);
let somemessage = await somechannel.messages.fetch(Msg.realid); 
// < TypeError: Cannot read property 'messages' of undefined

And there is also an outcome where the Discord API error is mentioned.

Can you point out my mistakes in the code?

Answer 1

So I found the answer, I did not save the channel correctly.