Can't Figure out the error, please help.

[RipPaw]

bad argument #1 to 'pairs' (table/struct expected, got nil)
stack traceback:
[C]: in function 'pairs'
EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:221: in function 'ZO_Scene:AddFragmentGroup'
EsoUI/Ingame/Battleground/BattlegroundScoreboardInGame.lua:162: in function 'ZO_Battleground_Scoreboard_In_Game:SetupPreferredKeybindFragments'
EsoUI/Ingame/Battleground/BattlegroundScoreboardInGame.lua:130: in function 'ZO_Battleground_Scoreboard_In_Game:OnShowing'
EsoUI/Ingame/Battleground/BattlegroundScoreboardInGame.lua:22: in function 'callback'
EsoUI/Libraries/Utility/ZO_CallbackObject.lua:111: in function 'ZO_CallbackObject:FireCallbacks'
EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:276: in function 'ZO_Scene:SetState'
EsoUI/Libraries/ZO_Scene/ZO_SceneManager_Base.lua:197: in function 'ZO_SceneManager_Base:ShowScene'
EsoUI/Libraries/ZO_Scene/ZO_SceneManager_Leader.lua:287: in function 'ZO_SceneManager_Leader:ShowScene'
EsoUI/Libraries/ZO_Scene/ZO_SceneManager_Leader.lua:370: in function 'ZO_SceneManager_Leader:OnSceneStateHidden'
EsoUI/Libraries/ZO_Scene/ZO_SceneManager_Base.lua:271: in function 'ZO_SceneManager_Base:OnSceneStateChange'
EsoUI/Libraries/ZO_Scene/ZO_SceneManager_Leader.lua:317: in function 'ZO_SceneManager_Leader:OnSceneStateChange'
EsoUI/Ingame/Scenes/IngameSceneManager.lua:340: in function 'ZO_IngameSceneManager:OnSceneStateChange'
EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:277: in function 'ZO_Scene:SetState'
EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:426: in function 'ZO_Scene:OnTransitionComplete'
EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:421: in function 'ZO_SceneetermineIfTransitionIsComplete'
EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:343: in function 'ZO_Scene:OnSceneFragmentStateChange'
EsoUI/Libraries/ZO_Scene/ZO_SceneFragment.lua:146: in function 'ZO_SceneFragment:SetState'
EsoUI/Libraries/ZO_Scene/ZO_SceneFragment.lua:156: in function 'ZO_SceneFragment:OnHidden'
EsoUI/Ingame/PlayerProgressBar/PlayerProgressBar.lua:16: in function '(anonymous)'