Found the fix, confirmed working by me.
change line 42 from:
Code:
float timeleft = ((Styx.WoWInternals.ObjectManager.Me.NextLevelXP - Styx.WoWInternals.ObjectManager.Me.XP) / Styx.Helpers.InfoPanel.XPPerHour) * 60;
to:
Code:
float timeleft = ((Styx.WoWInternals.ObjectManager.Me.NextLevelExperience - Styx.WoWInternals.ObjectManager.Me.Experience) / Styx.Helpers.InfoPanel.XPPerHour) * 60;
Basically a more recent release of HB changed 'XP' to 'Experience' in certain structures.
Or you can download the modified version from my attachment and replace the old version. (if this is an issue, let me know, or remove it)
Sorry, for some reason the attachment didn't get attached correctly, fixed.