It seems dungeonbuddy stopped working for me again. Starts up and moves to the instance portal, after it enters the portal i get the message "not in game".
This happend to me last week aswell. Adding new files from the zip that is provided in this thread did not work and just resulted with the same error. I fixed the issue with a fresh install.
Since the current version of honorbuddy does not have the dungeonbuddy files i did a fresh install this week and added the files from the zip. Resulting in again with a "not in game" message.
Added log, hope you can resolve the issue.
The new HB release or HB beta should fix your issue.