Discord. Js Embed Builder Error (. Description Field Required)

When trying to send a Discord.js embed, I'm getting a "DiscordAPIError: Invalid Form Body embeds[0].description: This field is required" error. Does anyone know why this is happening? I suspect this might be an issue with the source code. I'm using Discord.js v13, and I copied the embed straight off of the Discord.js guide website:

const exampleEmbed = new EmbedBuilder()
.setColor(0x0099FF)
.setTitle('Some title')
.setURL(')
.setAuthor({ name: 'Some name', iconURL: ' url: ' })
.setDescription('Some description here')
.setThumbnail(')
.addFields(
    { name: 'Regular field title', value: 'Some value here' },
    { name: '\u200B', value: '\u200B' },
    { name: 'Inline field title', value: 'Some value here', inline: true },
    { name: 'Inline field title', value: 'Some value here', inline: true },
)
.addFields({ name: 'Inline field title', value: 'Some value here', inline: true })
.setImage(')
.setTimestamp()
.setFooter({ text: 'Some footer text here', iconURL: ' });

outputChannel.send({ embeds: [exampleEmbed] });

Thanks!