MinimServer: incorrect number format for property 'listViewAlbums'

[Robert]

I see that samradford had this problem last year. He managed to fix it, but unfortunately didn't explain how.

I have installed Minimserver on my lenovo laptop PC (running Windows 10). I have a big iTunes library of classical music on the PC. I filled in the Index Tags line under Server Properties as @wrt,@alb,@con,@ART,@too.
Under listViewAlbums I have COMPOSER,ALBUM,CONDUCTOR,ARTIST,CONTENTGROUP.
The green Minim logo went red and I keep getting the message MinimServer: incorrect number format for property 'listViewAlbums'. I tried using the @wrt etc iTunes tags instead, but got the same error message.
How can I fix this?