I'm trying to access Controls part of the settings, but the game just crashes to desktop with no error screens. Has anybody faced this issue, what to do with it?

ERROR (Bad serial number given in setup)why?

I bought the arma X anniversary edition and all the items show up in my steam library including Arma 2 (as it should) but when going to the Arma 2 store page or any of the bundles including it, the game shows as not owned. Also adding it to my cart still gives me the option to purchase for myself, can anyone help?...

compre el juego ayer pero no me deja iniciarlo mandandome a esta pagina diciendo q no tengo licencia, alguien sabe que puedo hacer? (ya me contacte al soporte y nada)

http://ftp.armedassault.info.jerryhopper.com/