Help wanted migrating LMS from Diskstation to piCorePlayer

Hi all, I am trying to migrate over to LMS on piCorePlayer from Diskstation. I have been using LMS on my NAS to stream music via pCP on my Rpi for years now with few issues. Having updated my NAS, I am no longer able to open LMS on my NAS. I see that others have similar problems. I have installed LMS on pCP, but am having trouble mounting my NAS (containing my music library) as a remote network share.
Could somebody help me with this please? Thanks.