For your 401k and Health Insurance to show in the Pay taxes and Other Liabilities window, you’d have to set up payment schedules for them.
Please see the article Set up and pay scheduled or custom (unscheduled) liabilities for details and steps.
Resolution for 'benefit issue: 'Payroll benefit Liabilities' available: Yes.
The benefit issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the benefit issue yourself by looking for a resolution described in the article. If it is a complex benefit issue or you are unable to solve the issue, you may contact us by clicking here or by using other benefit support options.
For more information about resolving issues related to benefit in Quickbooks/QBO or to get support for the issue 'Payroll benefit Liabilities', click the link below: