Plex no longer locates files

Unfortunately no reply to above and as Plex no longer provides support, nowhere else to go.

I have tried all the advice in the following post: "Please check that the file exists and the necessary drive is mounted.", and others to no avail.

I have tried reapplying folders to the library. Weirdly, Plex wants to rename the shares by appending a “-1” to them when no such folder exists, but even trying this makes no difference.

Appreciate any thoughts to get my Plex running again.

Thanks