Started getting this lua error in battlegrounds with latest version any idea whats it about

Message: Interface\AddOns\OmniBar\OmniBar.lua:682: attempt to index field '?' (a nil value)
Time: Wed Jul 14 18:52:40 2021
Count: 6
Stack: Interface\AddOns\OmniBar\OmniBar.lua:682: attempt to index field '?' (a nil value)
[string "@interface\AddOns\OmniBar\OmniBar.lua"]:682: in function AddSpellCast' [string "@Interface\AddOns\OmniBar\OmniBar.lua"]:728: in function ?'
[string "@interface\AddOns\Bagnon\common\Wildpants\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua"]:119: in function <...nts\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:119>
[string "=[C]"]: ?
[string "@interface\AddOns\Bagnon\common\Wildpants\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua"]:29: in function <...nts\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:25>
[string "@interface\AddOns\Bagnon\common\Wildpants\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua"]:64: in function `Fire'
[string "@interface\AddOns\Bagnon\common\Wildpants\libs\AceEvent-3.0\AceEvent-3.0.lua"]:120: in function <...\common\Wildpants\libs\AceEvent-3.0\AceEvent-3.0.lua:119>

Locals: