I start honor buddy when logged into WoW, it loads up, attaches and then stops. I've never had this problem before. It has been working fine for me for the past 4-5 months, I am not sure what has changed. Thank you ahead of time.
Sometimes when hb or pc crashes it mess up settings files. Move your settings from hb folder and try again, if it attached and you want your old settings, start exploring them. If you'll find empty files - delete, they are broken.