Leapp upgrade fails with "grubby: kernel not found" error along with Message "Failed to call grubby to list available boot entries"

Issue

• Leapp upgrade fails with below Risk Factor :

  Risk Factor: high (error)
  Title: Failed to call `grubby` to list available boot entries.
  Summary: {"details": "Command ['grubby', '--info', 'ALL'] failed with exit code 1.", "stderr": "grubby: kernel not found\n"}