Why Ansible Tower Installer Is Failing With Error 'awx-manage: command not found ' ?

Issue

• Ansible Tower installer reruns are failing with error 'awx-manage: command not found.'

  TASK [preflight : Preflight check - check Tower license type] ******************
  fatal: [host1.example.com]: FAILED! => {"changed": true, "cmd": "awx-manage check_license", "delta": "0:00:00.004437", "end": "2020-06-30 20:16:27.988889", "msg": "non-zero return code", "rc": 127, "start": "2020-06-30 20:16:27.984452", "stderr": "/bin/sh: awx-manage: command not found", "stderr_lines": ["/bin/sh: awx-manage: command not found"], "stdout": "", "stdout_lines": []}
  changed: [host2.example.com] => {"changed": true, "cmd": "awx-manage check_license", "delta": "0:00:03.210380", "end": "2020-06-30 20:16:31.109959", "rc": 0, "start": "2020-06-30 20:16:27.899579", "stderr": "", "stderr_lines": [], "stdout": "enterprise", "stdout_lines": ["enterprise"]}
  changed: [host3.example.com] => {"changed": true, "cmd": "awx-manage check_license", "delta": "0:00:03.162692", "end": "2020-06-30 20:16:31.116737", "rc": 0, "start": "2020-06-30 20:16:27.954045", "stderr": "", "stderr_lines": [], "stdout": "enterprise", "stdout_lines": ["enterprise"]}