[14:42:50.848 N] Honorbuddy v2.5.9240.719 started. [14:42:52.042 N] Logging in... [14:42:52.846 N] We couldn't find a free WoW process to attach. Please login to game before starting Honorbuddy. That's the log, not much to it. It just says "Couldn't find a free WoW Process to attach. Please login to the game before starting Honorbuddy."
Are you starting honorbuddy with honorbuddy.launcher.exe? This helps ensure that HB is paired with the wow process that it's started with. Just make sure you log into your character before you press "Login" within the HB window.
download the latest version of honorbuddy from here. http://updates.buddyauth.com/GetNewest?filter=Honorbuddy after that do a CLEAN Install into a new folder, do not re-install to an previous installation and do not copy over any plugins, combat routines or quest behaviors into this new installation.