TypeError: Cannot read properties of undefined (reading 'ban') - discord.js

Question

client.on("channelCreate", async function(channel) {
const logs = await channel.guild.fetchAuditLogs({ limit: 1, type: 'CHANNEL_CREATE' });
const log = logs.entries.first();
if (!log) return;
const kanal = channel.guild.channels.cache.find(ch => ch.name === 'ticket')
const embed = new MessageEmbed()
.setTitle("🆘Protection System🆘")
.setDescription(`ο/η ${log.executor} έγινε banned επειδή έκανε αρκετά κανάλια`)
.setColor("RED")
const get = db.get(`channel2_${log.executor.id}`)
if(get === true)return channel.delete(),kanal.send({embeds: [embed]}),logs.executor.ban('Protection : Channel Created')
});
When I run this code, it returns this error:
TypeError: Cannot read properties of undefined (reading 'ban')

Answer 1

In your current code, the logs variable refers to GuildAuditLogs which is the collection of audit logs. It doesn't have an executor property. Instead, what you are looking for is the log variable (without an 's'). It contains the executor property. But using the executor property gives you an User object, so it still wouldn't have an .ban() property. So you would have to fetch the GuildMember who did the action. So, your fixed code would look like this:
client.on("channelCreate", async function(channel) {
const logs = await channel.guild.fetchAuditLogs({ limit: 1, type: 'CHANNEL_CREATE' });
const log = logs.entries.first();
const logExecutorMember = await channel.guild.members.fetch(log.executor.id)
if (!log) return;
const kanal = channel.guild.channels.cache.find(ch => ch.name === 'ticket')
const embed = new MessageEmbed()
.setTitle("🆘Protection System🆘")
.setDescription(`ο/η ${log.executor} έγινε banned επειδή έκανε αρκετά κανάλια`)
.setColor("RED")
const get = db.get(`channel2_${log.executor.id}`)
if(get === true)return channel.delete(),kanal.send({embeds: [embed]}),logExecutorMember.ban('Protection : Channel Created')
});