Discordapierror: Invalid Form Body DICT_TYPE_CONVERT: Only Dictionaries may be used in a Dicttype

Question

I am making a bot for Discord with Node.js and Discord.js. When I went to make the error command, the error that is in the title occurs:

Discordapierror: Invalid Form Body DICT_TYPE_CONVERT: Only Dictionaries may be used in a Dicttype

Code:

    client.on('message', function(msg) {
        if (msg.content.startsWith(config.prefix) || !msg.author.bot) {
            const user = msg.member;
            const args = msg.content.slice(config.prefix.length).trim().split(' ');
            const command = args.shift();
            var mentionedUser = msg.mentions.members.first();
            if (command === 'ban' && user.hasPermission('BAN_MEMBERS')) {
                mentionedUser.ban(args.join()).then(function() {
                    msg.reply(mentionedUser.toString() + ' banido com sucesso!');
                }).catch(function(e) {
                    msg.reply('Não foi possível banir ' + mentionedUser.toString() + ' devido ao seguinte erro: ' + e);
                });
            }
        }
    });

Answer 1

For documentation .ban expects these arguments in that specific format:

guildMember.ban({ days: 7, reason: 'They deserved it' })

Try to pass the information in this same format, it should solve your problem