[CLIENT] I can't reinstall the beta client

Ever since my computer got a BSoD a while back, whenever I try to install the new client I just get an error saying "please reinstall the new client". I can't get in the login screen to revert to the old client, and I can't access the new client. So every time I try, I have to reinstall the whole game. P.S. the fix client button does nothing to help P.P.S. If it means anything I had the client since alpha without this problem, this is more recent Rito pls help.