Download - AssertionError, Can't install. Please try again later

[itsecres-nandant]

while trying to download this particular apk with package name com.spotify.s4a and version code 12470 i'm getting this as response

{"generatedMessage":false,"name":"AssertionError [ERR_ASSERTION]","code":"ERR_ASSERTION","actual":null,"expected":true,"operator":"=="}

[itsecres-nandant]

now facing it again with linked in app