Problems viewing FTP files

I am using version 14.0.3 on VirtualBox image. I have an external storage for a FTP server.
I can see the server and browse through all of the folders. But when I click on a folder that contains files it says the folder is empty. It is not. This occurs for all folders.

How can I make the files visible?

Do you have correct read permissions for the folder contents? On Linux Ubuntu, this might work:

sudo chown -R www-data:www-data /path/to/storage

Good luck.

Thanks, but this is an FTP directory. It is a drive hanging off my router - it doesnt know anything about linux users. There is no corresponding linux directory that I can find to apply mods.

All of my nextcloud dirs have proper permissions