Not dillthedog (according to his user profile he posted something just two days ago) but maybe I can help.
Did you set up NFS permissions on your DiskStation according to the Kodi Wiki?
Does mounting work on a Raspberry Pi or a Vero? For mounting the NFS shares of my DS, I basically stuck to chillbo’s tutorial, created mount points in /mnt and mounted them in fstab. It looks like this:
# rootfs is not mounted in fstab as we do it via initramfs. Uncomment for remount (slower boot)
#/dev/vero-nand/root / ext4 defaults,noatime 0 0
IP-of-your-DiskStation:/volume1/Name-of-Shared-Folder /mnt/Name-of-Mount-Point nfs noauto,x-systemd.automount 0 0