Problem after resetting Killer Instinct through Apps settings on Win10

After I reset it, it disappeared from Apps list, and the icon on Start Menu (where I launch KI from) is greyed out and does not launch. The game is not gone because there is no difference in free space on my drives.

What does it mean? Does it re-update or something? Should I redownload whole game?

EDIT: at the KI page in Windows Store, there is “Install” button instead of “Play”… goddamit I dont want to redownload 50gigs again…