Small Issue – DINO WORLD -Jurassic Idle game Review

This game is great, however, there is an issue, whenever I try to evolve one of my dinosaurs, it says “You need 0 more gems.” It knows I have all the gems yet it makes me have to buy more, I wouldn’t buy anything so I’m stuck trying to get past this stupid bug(Unless you intentionally put it there) Please fix this.
Review by peosis on DINO WORLD -Jurassic Idle game.