World of Warcraft has been updated to 6.2.0, the plugin has been wrong, hope the author can update for 6.2.0

I haven't played for a while? What is broken? Do you have any errors related to the addon? Have you enabled "Load out of date addons"?

I'll take a look tomorrow and will update the tocs, maybe that is your issue.

The error is apparently related to the libplayerspells.
i use the german locale

Message: LibPlayerSpells-1.0: 2 errors in HUNTER database:
Data are probably outdated: data version=60100, client version=60200
Spell #172106: unknown spell
Debug:
...ButtonAuras\libs\LibPlayerSpells-1.0\data\Hunter.lua:23: in main chunk

edit: just deleted the entry for aspect of the fox in hunter.lua and
amplify magic in mage.lua fixes the problem as it seems...