How to properly add a ISO file whitout get the "Error 0 occurred while receiving the document"

I deployed my first Proxmox server in a Vmware nested environment.

I added a secound vDisk to the Proxmox server and create a Directory folder to save ISO file, but when I try to add the ISO file, I get the following message: "Error 0 occurred while receiving the document"

I am login with the root user into the Proxmox server version 8.1.10

Any idea, what I have been doing wrong??