Hi! I'm really sorry the game isn’t working on your phone — I want to fix it as soon as possible for you.
Could you help me with two quick things?
1. What version of Android is your Samsung S21 using?
2. What exactly happens when you try to open the game? (For example: it doesn't open, crashes, shows a black screen, etc.)
Thanks so much for your patience — I really appreciate your help! Feel free to DM us via X, so I can help you faster!