Unable to login to the Ansible Automation Platform.

Issue

• When login to the Ansible Automation Platform 2.1, the Internal Server Error: /api/login/ occurs.

  
  Traceback (most recent call last):
  File "/var/lib/awx/venv/awx/lib64/python3.8/site-packages/django/db/backends/utils.py", line 84, in _execute
  return self.cursor.execute(sql, params)
  psycopg2.errors.ReadOnlySqlTransaction: cannot execute INSERT in a read-only transaction