Discord.js. Reaction Roles - discord

Question

I'm trying to script a bot that gives people a role when they click on an emoji.
My problem is that people don't get the role when they click on the emoji. When I enter the first Command t!role the Message with the emoji is sent correctly. However, the people reacting will not receive the role. I tried everything that was suggested in the Comments. Unfortunatley nothing seems to work.
const bot = new Discord.Client( {
intents: [
Intents.FLAGS.GUILDS,
Intents.FLAGS.GUILD_MEMBERS,
Intents.FLAGS.GUILD_MESSAGES,
Intents.FLAGS.GUILD_MESSAGE_REACTIONS,
Intents.FLAGS.DIRECT_MESSAGE_REACTIONS,
],
partials: ["MESSAGE", "CHANNEL", "REACTION"]
});
else if(parts[0].toLowerCase() == "t!role") {
let sendMessage = await message.channel.send('React with 👮to get the role')
sendMessage.react('👮')
bot.on('messageReactionAdd', async (reaction, user, channel) => {
if(reaction.message.partial) await reaction.message.fetch();
if(reaction.partial) await reaction.fetch();
if(user.bot) return;
if(!reaction.message.guild) return;
if(reaction.message.channel.id === '8786607442820137464') {
if(reaction.emoji.id === '8789972642138767364') {
reaction.message.guild.members.cache.get(user.id).roles.add('8779841244749004804')
}
}
})

Answer 1

Discord had added a few new features in their developer portal a few months ago and most of the documentation and tutorials skip over that but it is necessary for them to be active in order to have a functional reaction roles feature.
The process to turn these on is to go to the application page of your bot, go to the bot page under the application and activate Presence Intent and Server Members Intent. Hopefully after this your reaction roles should start working.

Answer 2

Enable partials in your client initialization. Discord.js requires you now to add partials and intent flags you actually gonna use. The messageReactionAdd event requires some partials as well: REACTION, MESSAGE, CHANNEL.
For example, this is how you should use partials.
const bot = new Client({
intents: [
Intents.FLAGS.GUILDS,
Intents.FLAGS.GUILD_MEMBERS,
Intents.FLAGS.GUILD_MESSAGES,
Intents.FLAGS.GUILD_MESSAGE_REACTIONS,
Intents.FLAGS.DIRECT_MESSAGE_REACTIONS,
],
partials: ["MESSAGE", "CHANNEL", "REACTION"]
});
I have used the same exact code in your post, only changed a few id's on my side, and it's working as intended. As my comment before:
Bots can only give roles below their own, even if they have Administrator permissions. Make sure the role is below the bot's role. Use .catch((error) => console.log(error.message)); to log any errors if giving out the roles has failed for some reason.
bot.on('messageReactionAdd', async (reaction, user, channel) => {
if(reaction.message.partial) await reaction.message.fetch();
if(reaction.partial) await reaction.fetch();
if(user.bot) return;
if(!reaction.message.guild) return;
if(reaction.message.channel.id === '8786607442820137464') {
if(reaction.emoji.id === '8789972642138767364') {
reaction.message.guild.members.cache.get(user.id).roles.add('8779841244749004804')
}
}
});