Can i ask why does it always crashes when i open it?, is it because my phone isn't compatible with the game or the game is the problem?
Sorry, that's unrelated to me then. Unfortunately sometimes renpy games just won't work well on androids. I can only suggest the boring answers such as "try reinstalling" 😥😥
If you get the same issue (crash) with other renpy games that are 1gb or bigger, then its likely phone itself being too underpowered. If it's random which does or doesn't, it's still phone, but more of a general issue with renpy games and their apks.