This is a curious one. ISPConfig 3.2.8p1, NginX, on Ubuntu 20.04.4 LTS. This is *more* likely to occur on back to back remote API calls to create a site. Not sure why or where to look, my first stop would usually be the domain in question's log file but... I'm also unable to create such a folder with either root or the client's permission, i.e.: root@server1:/var/www/test101.example.com # mkdir log mkdir: cannot create directory ‘log’: Operation not permitted Any clues, or where to look for clues greatly appreciated.