Upload / replace file not permission

Hi. I have installed hestia cp. When I logged into FTP I wanted to upload a file. I get a “no permissions” message pops up.

I type the commands in ssh accordingly:
ls -laF
drwxr-xr-x+ 13 root www-data 4096 Feb 18 12:27 myuser/
drwxr-xr-x 5 root www-data 4096 Feb 18 12:13 ubuntu/

Wanting to change access via the command:
sudo chown -R myuser:myuser -R myuser (dir)
A message appears:
chown: changing ownership of ‘myuser/conf’: Operation not permitted

Despite using sudo, it pops up that I do not have permissions.
When upgrading packages, I use sudo apt-get udate && upgrade
and root permissions are normal.

I should add that this is a fresh ubuntu installation.

I don’t know what else I can do, maybe someone can help me?

Greetings

You can not modify the home folder du to foo sftp jail…

So how to restore the default settings? I will add that the problem occurred from the very beginning. After creating a user I could not upload anything to the server. Is it normal for this to happen ?