The `$APP_DATA_PATH` may be hosted on a NAS that creates snapshots (or a btrfs filesystem). In such a case, the `.snapshot` folder cannot be touched.
The only way to bypass this limitation is to go around the `.snapshot` folder.
echo"OpenProject currently expects to be reached on the following domain: ${SERVER_NAME:=localhost}, which does not seem to be how your installation is configured." > /var/www/html/index.html
echo"OpenProject currently expects to be reached on the following domain: ${SERVER_NAME:=localhost}, which does not seem to be how your installation is configured." > /var/www/html/index.html