Why ain't pixel live wallpapers working on my device?

[Koli Poli]

I installed the ported pixel wallpaper 2017 app on my device and tried to access the live wallpapers through the Google wallpapers app. But when I try to preview or load any live wallpaper , only one or two wallpapers are able to get loaded. Rest of them when I try to preview there is a message that says 'Pixel wallpapers 2017 has stopped' but why?