Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Sebastian Krantz <sebastian.krantz@graduateinstitute.ch>’
  
  Found the following (possibly) invalid URLs:
    URL: https://stackoverflow.com/questions/67349744/using-ftransform-along-with-fgroup-by-from-collapse-r-package
      From: man/ftransform.Rd
      Status: 403
      Message: Forbidden

No changes to worse in reverse depends.