On demon hunter i get this

Error occured in: Global
Count: 1
Message: ..\AddOns\Quartz_Procs\quartzprocs.lua line 155:
attempt to call method 'returnProcList' (a nil value)
Debug:
(tail call): ?
Quartz_Procs\quartzprocs.lua:155:
Quartz_Procs\quartzprocs.lua:99
(tail call): ?
[C]: ?
[string "safecall Dispatcher[1]"]:9:
[string "safecall Dispatcher[1]"]:5
(tail call): ?
...\AddOns\AchieveIt\libs\AceAddon-3.0\AceAddon-3.0.lua:529: InitializeAddon()
...\AddOns\AchieveIt\libs\AceAddon-3.0\AceAddon-3.0.lua:644:
...\AddOns\AchieveIt\libs\AceAddon-3.0\AceAddon-3.0.lua:636
Locals:

v3.63 will fix your issue