"We couldn't find a free WoW process to attach. Please make certain your toon is standing in game world and you are running latest version of Honorbuddy."
Thank you for the screenshots, they make the problem immediately obvious.
You obviously didn't spend any time reading the fast setup guide we linked. You have also failed to read the error message being displayed. Here's what it says:
"We couldn't find a free WoW process to attach.
Please make certain your toon is standing in the game world and you are running the latest version of Honorbuddy."