I've had that happen to me before actually, the reason it happened to me is that I wasn't running wow in windowed mode O.O can't tell from the log if you are or not but worth a try and thought I'd mention it! Alpha
Ok I've searched the forums and there are 2 other things you can try which are: First reinstall HB completely and then try the 2 below 1) Change the setting in wow which renders the game in DirectX 11/9 to the opposite of what it currently is set to. 2) Delete the 'Settings' folder in your Honorbuddy folder.
Well there's not real big noticeable difference with Dx 11 in WoW, I mean ya it will look a little bit nicer but that's about it. If anything playing in Dx 11 enabled would be a nicer WoW to look at ^^ Not sure why it would matter so much as it's not a huge impact on GPU either. Any particular reason why you don't want to play in Dx 11?