Unable to access my NAS from Linux (was working previously)

Hello all,

A couple of months back, I was expertly guided in how to access shares on my ReadyNAS 104 from my new Linux Mint 22 install.

Please see:  https://community.netgear.com/t5/New-ReadyNAS-Users-General/Using-my-ReadyNAS-104-from-Linux-with-NFS/td-p/2416803/highlight/false/page/2

Some weeks have now passed and I have not had a need to access the shares until now.  So I opened one of the folders that I had placed shortcuts to on my desktop but it says I don't have access (see screen shots).

Any ideas what I might have done to cause this and suggestions of how to fix it?

Thanks!