despues de
intento acceder al backend y al front end y
solo obtengo

Please try /shopware.php/backend
instead of /backend
Maybe the .htaccess-file is missing or isn’t readable for your system?
I do not know what I do badly
Thanks for your time
but it has not worked
as for .htaccess, it is in the root directory with the same permissions of the rest of the files !!!
Did you activate your URL /Shop on your server ?
I have it installed on my computer. Apache, mysql, php 7.3.
The installation gave me the ok.
as you can see in my previous message.
Thank you