JS kick not working

    if(command === 'kick'){
        const userKick =  message.mentions.users.first

        if(userKick) {
            var member = message.guild.member(userKick);

            if(member) {
                member.kick('You have been kicked!').then(() => {
                    message.reply(`kicked user${userKick.tag}!`);
                }).catch(err =>{
                    message.reply('I was not able to kick that user!')
                    console.log(err);
                })
            }else{
                message.reply('user not found!')
            }
        }else {
            message.reply('you must state the person you would like to kick!')
        }
    }