The only version of Netflix still working on android boxes is the Jan 31, 2019 release.
If you have an android box though you don’t need Netflix, it’s just wasting space & money. Use Kodi
If you really want Netflix just get Aptoide TV app. It’s like the google play store except you can see older versions of all the apps. Netflix recently stopped working on Androids but if you install an older version it’ll work. Aptoide is the easiest place to find older versions of apks