Problem connecting to server

[Kuzuki]

 

Hello, good morning, since installing blade & soul, I get a poster when I want to play it, sometimes it happens to me when I connect to the server or I choose a class, and I get a poster that says: For more stalbe performance when using 32- Bit version of Windows Vista, 7, 8, 8.1, or Windows 10 operating system. I want to know if there is a possible solution for this type of problem, if I have to install something like that, or something, I do not know, thank you very much for your attention.