Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Pavel N. Krivitsky <pavel@statnet.org>’
  
  License components with restrictions and base license permitting such:
    GPL-3 + file LICENSE
  File 'LICENSE':
    --------------------------------------------------
    License for the 'statnet' component package 'ergm'
    --------------------------------------------------
    
    This software is distributed under the GPL-3 license.  It is free,
    open source, and has the following attribution requirements
    (GPL Section 7):
    
    (a) you agree to retain in 'ergm' and any modifications to 'ergm'
        the copyright, author attribution and URL information as
        provided at statnet.org/attribution
    (b) you agree that 'ergm' and any modifications to 'ergm' will,
        when used, display the attribution:
         Based on 'statnet' project software (statnet.org).
         For license and citation information see statnet.org/attribution
    --------------------------------------------------
    
    What does this mean?
    ====================
    
    If you are modifying 'ergm' or adopting any source code from
    'ergm' for use in another application, you must ensure that the
    copyright and attributions mentioned in the license above appear
    in the code of your modified version or application. These 
    attributions must also appear when the package is loaded
    (e.g., via 'library' or 'require').
    
    Enjoy!
    
    Mark S. Handcock, University of California, Los Angeles
    David R. Hunter, Penn State University
    Carter T. Butts, University of California, Irvine
    Steven M. Goodreau, University of Washington
    Pavel N. Krivitsky, University of New South Wales
    Michał Bojanowski, Kozminski University
    Martina Morris, University of Washington
    
    The 'statnet' development team
    
    Copyright 2003-2024
    
    Other contributors
    ====================
    
    khash.h "library" is Copyright (c) 2008, 2009, 2011 by Attractive
    Chaos <attractor@live.co.uk>, incorporated under the MIT license.
    
    kvec.h "library" is Copyright (c) 2008 by Attractive
    Chaos <attractor@live.co.uk>, incorporated under the MIT license.
  
  Found the following (possibly) invalid URLs:
    URL: https://csss.uw.edu/research/working-papers/assessing-degeneracy-statistical-models-social-networks
      From: man/ergm-package.Rd
            man/ergm.Rd
            inst/doc/ergm.html
      Status: Error
      Message: server verification failed: certificate signer not trusted. (CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none)

No changes to worse in reverse depends.