avatarURL function is broken?

const staffList = this.app.config.discordData.staffList;

let staffData: StaffData[] | undefined = this.app._cache.get("staffData");
if (!staffData) {
staffData = [];
const guild = this.app._client.guilds.cache.get(this.app.config.discordData.guildId) || await this.app._client.guilds.fetch(this.app.config.discordData.guildId);
   for (const staff of staffList) {
      const user = guild.members.cache.get(staff) || await guild.members.fetch(staff);
      console.log(user.displayAvatarURL())
      staffData.push({
         staff: user,
         highestRole: user.roles.highest,
         avatar: user.avatarURL() as string
      });
   }

   this.app._cache.set("staffData", staffData);
}

res.render("staff", { title: "Staff", data: staffData });

private initializeClient() {
  this._client.on("ready", () => {
    this.logger.info(`Connected to Discord through the bot ${this._client.user?.tag}`, "Discord");
  });

  this._client.login(this.config.discordData.botToken).catch(err => {
    this.logger.error(`Discord connection failed; This may cause an outage.`);
  });
}