Royal Games keeps asking me to update flash player

I mainly use Firefox but no matter what browser I use the game keep asking me to update my flash player. I have tried Chrome and Brave and they give me the same message to update my flash player. I have uninstalled and reinstalled flash player, but it still asks to update. If I tell it to skip, which is another option, I get a black screen when the game comes up. The game is playing because it has the sounds, but just a black screen. This has been happening for a couple weeks and is very frustrating. Thank you for your time.