Gachaverse (RPG & Anime Dress Up)

Yesterday i this game on other app and It CRASHED. And so I'm trying this AND IT CAN'T INSTALL SRS? WHY CAN I INSTALL OTHERS GAME??

I playing it in 2019 and now it's gone it isn't in the play store and when I try to an apk I scan it for viruses in case there is and there's always a Trojan on there, even on the safest site apkmirror so I'm sad :( anyways sorry for the rant