Can't download.

I can't download and install SongPop 2 from the google play store. I can no longer play the old SongPop because it won't let me go into the game. It just says I must update to SongPop 2. But if I can't download SongPop 2, I can't play at all. Please fix this issue. I have tried on both, my LG G5 phone and my Samsung tablet.
Thanks,
Dave Perrine