I created the new user = SUCCESS
I tried to access that dir via browers = same problem - access not granted
then I deleted the user with the command line you suggested (including option -type wwwroot) = SUCCESS
I tried again to access that dir via browers = same problem - access not granted
my domain name includes a dash like xxxx-yyyy.com
I gave up. I moved all the content in a newly created directory and removed the original one.
Thank you Igor!
I am available to try to resolve the issue if you want.
Best,
Gabriele