I started playing it and noticed two elements that do not go together: like a Trojan virus is in the game and that worries me, and the other thing is that it closes the screen automatically without me doing anything and this is more seen at the moment, that closes the screen when starting the fight, is there a way to operate it or a page that confirms that it is free of the virus and that error?

there is no virus in there, the game just need permission to read and write save file that might need access to user:// folder, thats all

sometimes antivirus prevent game like this due to unknown source, antivirus does false flag sometimes.