I made a discord bot using discord.js. This bot should ask questions about a game when someone uses !rank [rank name] and if the user answers correctly he/she receives the rank. I found a way to collect messages, but this method does not want to work, it send the message multiple times and also ignores the time given to the collector, I tried multiple things but neither of them worked, I am very new to creating discord bots so can someone recommend me any other solution to make this bot work?

CODE:

    client.on('messageCreate', message => {
    if (message.content == '!rank r6') {
        message.channel.send('Is Frost an attacker?')
        const collector = new Discord.MessageCollector(message.channel, m => m.author.id == message.author.id, {max: 1, time: 8000})
        collector.on('collect', message => {
                if (message.content == 'no'){
                    message.channel.send('Role added')
                    message.member.roles.add('775660517053562900')
                }
         })
        }     
})