Honorbuddy BIG BUG!

hi! i just bought this product and now is saying this:
21:25:18:748] Logging in...
[21:25:19:028]
[21:25:19:609] Honorbuddy does not support the currently active 'gxAPI' please change it to 'D3D9'
[21:25:19:613] Error attaching Honorbuddy to WoW! - System.Exception: Honorbuddy does not support the currently active 'gxAPI' please change it to 'D3D9'
kohteessa Styx.WoWInternals.ObjectManager.Initialize(Memory blackmagic)
kohteessa Honorbuddy.MainWindow.#TUc()
[21:25:19:613] -------------------------------
[21:25:19:613] You have not selected a valid instance of WoW to attach to!
[21:25:19:613] Please restart Honorbuddy and choose a valid instance of WoW to use Honorbuddy with!
[21:25:19:614] This version of Honorbuddy only supports WoW Build #15050
[21:25:19:614] You are currently on build #15050
[21:25:19:614] -------------------------------
[21:25:21:815] Honorbuddy is up-to-date

 

You should read the gigantic red text at the bottom of the installation instructions!!

 

You failed! xD
Its no bug, just read what you have to do
(Switch directX11 to directX9 and play in windowed mode)