Made my very own ui using addons

[Panthergaming]

Made my very own ui using addons
and when i open up my cheater page i get this Lua Error
Message: Interface\AddOns\Aurora\aurora.lua:416: attempt to index local 'f' (a nil value)
Time: 02/04/18 08:14:49
Count: 1
Stack: Interface\AddOns\Aurora\aurora.lua:416: attempt to index local 'f' (a nil value)
[C]: ?
Interface\AddOns\Aurora\aurora.lua:416: in function `ReskinCheck'
Interface\AddOns\Aurora\AddOns\Blizzard_GuildUI.lua:111: in function `addonModule'
Interface\AddOns\Aurora\aurora.lua:802: in function <Interface\AddOns\Aurora\aurora.lua:698>
[C]: in function `LoadAddOn'
Interface\FrameXML\UIParent.lua:429: in function `UIParentLoadAddOn'
Interface\FrameXML\UIParent.lua:563: in function `GuildFrame_LoadUI'
Interface\FrameXML\UIParent.lua:754: in function `ToggleGuildFrame'
[string "TOGGLEGUILDTAB"]:1: in function <[string "TOGGLEGUILDTAB"]:1>

Locals:




not sure how fix it as i want to make sure it all runs smooth so i can release the ui for my YouTube channel can i get some help or some help making one to look like what i want