TypeError: Cannot read properties of undefined (reading 'client')

TypeError: Cannot read properties of undefined (reading 'client')
    at Object.handleError (C:\Users\cmart\Desktop\Discord Bots\Sapphire\src\utils.js:129:36)
    at WarningsCommand.messageRun (C:\Users\cmart\Desktop\Discord Bots\Sapphire\src\commands\Moderation\warnings.js:96:27)

  const errorLogs = this.container.client.channels.cache.get(
    config.channels.errorLog
  );